Showing posts with label Atlantic Forest. Show all posts
Showing posts with label Atlantic Forest. Show all posts

Thursday, July 30, 2026

[Botany • 2026] Cryptanthus pataxoanus & C. beuckeri • Two Ornamental Species of Cryptanthus (Bromeliaceae: Bromelioideae) on the brink of Extinction: A New Species and its congener from the 19th century

 

Cryptanthus pataxoanus  Forzza & Leme,

in Leme, Fernandez, Fontana, Almeida et Forzza, 2026. 

Abstract
The authors describe and illustrate a new species of CryptanthusC. pataxoanus, found within the Monte Pascoal National and Historical Park, and present new data on its closest morphological relative, C. beuckeri, both endemic to the Atlantic Forest of the state of Bahia, Brazil, and assessed as Critically Endangered (CR). The new taxon represents one of the most ornamental discoveries in recent years due to its marbled foliage, with contrasting greenish-yellow and dark green colors, which is similar to C. beuckeri. The main differences between C. pataxoanus and its closest relative include leaf blades not petiolate or the basal ones sometimes subpetiolate, the much broader portion of the blades distinctly longer, the narrower sepals covered by brown-centered trichomes, and petals without glandulose trichomes. The discovery of the new species results from cooperative work with the Pataxó indigenous community living in Barra Velha and Barra Velha do Monte Pascoal Indigenous Lands, located within the boundaries of the Monte Pascoal National and Historical Park. It symbolizes the inexhaustible richness of the Brazilian biodiversity in general and the Atlantic Forest of southern Bahia in particular, despite its current coexistence with high levels of threat.

Monocots, Atlantic Forest, Monte Pascoal National and Historical Park, morphology, taxonomy

Cryptanthus pataxoanus (Umburanas 141):
A, B. Details of the population at the type locality. C. Habit. Photos: S. Caram (A, B); E. Leme (C).

Cryptanthus pataxoanus (Umburanas 141):
A. Elongate stem. B. Details of the marginal spines. C. Inflorescence. D. Details of the inflorescence. E–O. Perfect flower. E. Floral bracts of the basal fascicles. F. Sepals. G. Petal and stamens. H. Stigma. I. Frontal view of the anther just before anthesis. J. Abaxial view of the anther just before the anthesis. K. Basal fascicle. L. Flower. M. Basal portion of the petal and stamens. N. Details of the apex of the sepals. O. Longitudinal cross section of the ovary. P–T. Staminate flower: P. Flower of the inner portion of the inflorescence. Q. Floral bract. R. Details of the apex of the sepal. S. Sepals. T. Longitudinal cross section of the ovary.
 Photos: E. Leme. Bars: A = 2 cm; B, C, K, L, P = 1 cm; D–G, M–O, Q–T = 5 mm; H–J = 1 mm.

 Cryptanthus pataxoanus Forzza & Leme, sp. nov.  

Diagnosis:—This new species can be distinguished from its morphologically closest relative, Cryptanthus beuckeri, by the leaf blades not petiolate or the basal ones sometimes subpetiolate, with subpetioles gradually merging into the much broader distal portion (vs. always distinctly petiolate, with petioles strongly contrasting with the much broader distal portion); the much broader portion of the blades longer (20–30 cm vs. 10–20 cm long); sepals with narrower lobes (vs. 2–2.5 mm vs. 3.5–4 mm wide) covered by distinctly brown-centered trichomes (vs. trichomes white); and petals without glandulose trichomes (vs. adaxially bearing glandulose trichomes).

Etymology:—The name of this new species honors the Pataxó indigenous people. They belong to the Macro-Jê linguistic family and have a long history of resistance, facing challenges such as reclaiming their traditional lands and promoting the value of their culture since the 16th century. The Pataxó predominantly inhabit the extreme south of Bahia, which includes the area of the Monte Pascoal National and Historical Park where the Barra Velha and Barra Velha do Monte Pascoal Indigenous Lands are located. They maintain strong traditions, such as the Patxohã language, rituals (like the Awê), and the use of body paintings that serve as cultural identifiers, in addition to promoting the conservation of the environment within their traditional natural territory.

A. Watercolor by the botanical artist Paulo Ormindo, depicting Cryptanthus pataxoanus.
B. Presentation of the C. pataxoanus and the original watercolor depicting the species during the ceremony commemorating the 64th anniversary of the creation of the Monte Pascoal National and Historical Park, as well as the reopening of the Visitor Center, by the Pataxó indigenous people who participated in the discovery.

A. Watercolor by the botanical artist Paulo Ormindo, depicting Cryptanthus pataxoanus. B. Presentation of the C. pataxoanus and the original watercolor depicting the species during the ceremony commemorating the 64th anniversary of the creation of the Monte Pascoal National and Historical Park, as well as the reopening of the Visitor Center, by the Pataxó indigenous people who participated in the discovery.
C–F. Illegal selective logging and habitat degradation associated with mule trampling used for clandestine timber extraction inside the park. Photos: R.C. Forzza (B); C. Rodrigues (C, D, E, F).


ELTON M. C. LEME, EDUARDO P. FERNANDEZ, ANDRÉ P. FONTANA, PEDRO S. DE ALMEIDA and RAFAELA C. FORZZA. 2026. Two Ornamental Species of Cryptanthus (Bromeliaceae, Bromelioideae) on the brink of Extinction: A New Species and its congener from the 19th century.  Phytotaxa. 763(3); 201-218. DOI: doi.org/10.11646/phytotaxa.763.3.1  [2026-06-24]


Friday, July 3, 2026

[Herpetology • 2026] Dendropsophus liliae • A New Species of Dendropsophus (Anura: Hylidae) of the D. ruschii group from the Atlantic Forest in Serra da Mantiqueira, Minas Gerais, Brazil


Dendropsophus liliae
Santana, Shepard, Carvalho, Müller, Assis & Feio, 2026 

 
Abstract
The Dendropsophus ruschii species group currently comprises two species with disjunct distributions between the Atlantic Forest and the Amazon. Based on an integrative approach combining morphological, acoustic, and molecular data (mtDNA barcoding), we describe a new species from the Serra da Mantiqueira, Minas Gerais, Brazil. Dendropsophus liliae sp. nov. is diagnosed by its small size, rounded digital discs, presence of a calcar appendage, dark red iris, and a distinct white stripe from the snout to the upper eyelid. This discovery expands the known diversity of the group and represents its most inland record within the Atlantic Forest.

Live specimens of Dendropsophus liliae sp. nov. from Serra do Brigadeiro (type locality).
 (A) Holotype adult male (MZUFV20707), (B) paratype adult male (ZUFMS-AMP7816), (C–F) unvouchered adult males.
Photographs by D.J. Santana (A–B) and C.L. Assis (C–F).
Published under a CC BY 4.0 license.

Dendropsophus liliae sp. nov.  
   
Diagnosis.—We assigned the new species to the genus Dendropsophus and to the D. ruschii species group based on phylogenetic results (see Results below). In addition, the new species morphologically resembles other species of the D. ruschii group, especially D. ruschii, which exhibit white marks on the head and flanks. Dendropsophus liliae sp. nov. can be distinguished from its congeners within the D. ruschii group by the combination of the following features: (1) small size, adult males 16.0–19.5 mm SVL; (2) dominant frequency of the advertisement call from 6030 to 6630 Hz; (3) rounded discs on fingers and toes; (4) presence of sparse small granules on the dorsum; (5) presence of a calcar appendage; (6) eyes dark red; (7) overall dorsal coloration brown; (8) nuptial pad poorly developed; (9) wide head HW/SVL = 0.30–0.34; (10) a well-marked white line running from the posterior edge of the upper eyelid to the tip of the snout.

Etymology.— The specific epithet liliae is a patronym honoring Prof. Lília Maria Fraga Tostes (in memoriam) for her extensive contributions to biology education, her friendship, and her mentorship of DJS during his undergraduate studies. Prof. Lília, affectionately known as “Lilinha,” was a dear friend and a charismatic teacher widely known by the citizens of Muriaé, Minas Gerais (the hometown of DJS). Her kindness and charisma inspired many students to pursue careers in the biological sciences, and several of her former students are now professors who continue to carry her lessons forward.

 
Diego J. Santana, Donald B. Shepard, Priscila S. Carvalho, Márcia M. P. Müller, Clodoaldo L. Assis and Renato N. Feio. 2026. A New Species of Dendropsophus (Anura, Hylidae) of the D. ruschii group from the Atlantic Forest in Serra da Mantiqueira, Minas Gerais, Brazil. PLoS One. 21(6): e0351087. DOI: doi.org/10.1371/journal.pone.0351087 [June 23, 2026]

Saturday, May 16, 2026

[Herpetology • 2026] Arcovomer moqueca & A. ubatuba • Unveiling Cryptic Diversity in the Genus Arcovomer (Anura: Microhylidae): Description of Two New Species from the Brazilian Atlantic Forest


(C–F) Arcovomer moqueca sp. n. from Aracruz (type locality), state of Espírito Santo;
(G–H) A. ubatuba sp. n. from Ubatuba (type locality), state of São Paulo 
Andrade, Lyra, & Toledo, 2026  

SALAMANDRA. 62(2)
Note the differences in color patterns among individuals, with the dorsum and limbs ranging from light grey to dark brown.

Abstract
 The Brazilian Atlantic Forest is one of the world’s most threatened biodiversity hotspots, harbouring high levels of species richness and endemism, including more than 700 amphibian species. Although considerable progress has been made in describing this diversity, new species continue to be formally recognized each year, and many lineages remain poorly studied. Here, we use an integrative approach combining molecular, morphometric, and bioacoustic data to reassess species diversity within the frog genus Arcovomer (Anura, Microhylidae), long regarded as monotypic. Our results reveal the presence of three deeply divergent lineages within the genus Arcovomer. One corresponds to A. passarellii, the type species from the state of Rio de Janeiro, while the other two represent distinct lineages from the states of Espírito Santo and São Paulo, respectively. Phylogenetic analyses based on mitochondrial and nuclear markers recovered Arcovomer as a strongly supported clade, and morphometric and acoustic evidence combined with molecular data support the distinctiveness of these lineages, leading to the description of two new species. These species are geographically structured across distinct ecoregions of the Brazilian Atlantic Forest, highlighting the conservation relevance of recognizing independently evolving, range-restricted taxa. By revealing previously overlooked diversity within this genus, this study highlights the importance of integrative taxonomy, long-term specimen curation, and sound archives for documenting and conserving biodiversity within one of the world’s most threatened biomes. 

Key words. Amphibia, genetic divergence, bioacoustics, endemism, integrative taxonomy, biological collections.

Variation in coloration in life among three species of Arcovomer:
 A. passarellii (ZUEC-AMP 26936) from Rio das Ostras, state of Rio de Janeiro (A–B);
A. moqueca sp. n. from Aracruz (type locality), state of Espírito Santo (C–F);
A. ubatuba sp. n. from Ubatuba (type locality), state of São Paulo (G–H).
Note the differences in color patterns among individuals, with the dorsum and limbs ranging from light grey to dark brown.

Arcovomer moqueca sp. n.

Diagnosis: Assigned to the genus Arcovomer based on phylogenetic evidence and the presence of an arched vomer, a diagnostic osteologic synapomorphy of the genus sensu Carvalho (1954). This species is phenotypically cryptic in relation to A. passarellii.

Etymology: The specific name is a noun in apposition, derived from the African Bantu language, Kimbundu,  'mu’keka', meaning fish stew, or from the indigenous Tupi, 'pokeka' and 'moquem', meaning wrapped and grilled respectively. The word 'moqueca' subsequently emerged from the Portuguese. It is a Brazilian seafood stew, traditional from the state of Espírito Santo, and declared as a cultural asset, intangible heritage, of the state (Brazil 2015, Law No. 10.463). It honors the state of Espírito Santo, celebrating its traditions, peoples, cultural diversity, and rich culinary heritage. 


Arcovomer ubatuba sp. n. 

Diagnosis: Placed in the genus Arcovomer based on phylogenetic position. Externally cryptic relative to A. passarellii and A. moqueca sp. n., A. ubatuba sp. n. is reliably differentiated only through an integrative approach combining morphology, bioacoustics, and genetics.

Etymology: The specific epithet 'ubatuba' honours the municipality of Ubatuba, state of São Paulo, Brazil, where this species was first collected and which is its type locality. The name is derived from the indigenous Tupi language, 'uba' meaning “place” and 'tuba' meaning “canoes”, referring to the traditional gathering point of canoes during the Tamoio Confederation. The epithet is treated as a noun in apposition. This name relates to the species type locality and evokes the cultural and historical heritage of the people from Atlantic Forest coastal region. 


Felipe Silva de Andrade, Mariana L. Lyra, Délio Baêta & Luís Felipe Toledo. 2026. Unveiling Cryptic Diversity in the Genus Arcovomer (Anura: Microhylidae): description of Two New Species from the Brazilian Atlantic Forest. SALAMANDRA. 62(2); 77–96. [2026-05-15]

Friday, April 10, 2026

[Herpetology • 2026] Phyllodytes gravataAnother Piece in the Puzzle: A New Species of Phyllodytes Wagler, 1830 (Anura: Hylidae) from the Atlantic Forest of southern Bahia, northeastern Brazil


 Phyllodytes gravata 
Santos, Rodrigues & Dias, 2026
 

Abstract
We describe Phyllodytes gravata sp. nov., a new species of bromeligenous treefrog from the Atlantic Forest of southern Bahia, Brazil. The new species is characterised by its small body size (males 19.5–22.0 mm snout-vent length; female 23.5 mm), a rounded snout with an apical tubercle, an inconspicuous row of tubercles along the tarsus, with a single prominent tubercle at the tibiotarsal articulation, a dorsolateral brown stripe, and an advertisement call composed of long series of pulsed notes (22–34 notes/call; call duration 5.2–7.3 s; dominant frequency 2.75–3.83 kHz). The species is currently known from only two nearby localities within the Central Corridor of the Atlantic Forest (CCAF), in the municipality of Porto Seguro, district of Trancoso, Bahia, a major tourist destination, where it inhabits bromeliads in sandy-soil ecosystems known as mussunungas. Its apparently microendemic distribution and strict association with bromeliads render it vulnerable to several anthropogenic threats, such as bromeliad harvesting, increasing tourism, urbanisation, and agriculture. This discovery underscores the persistent hidden diversity of the CCAF and reinforces the urgent need to protect its highly special microhabitats.

Keywords: Taxonomy, Amphibia, Bioacoustic, Bromeliad, Conservation


In-life photographs of Phyllodytes gravata sp. nov.
  
A.  Paratype, ♂  (MZUESC 23915). B. Paratype, ♂  (MZUESC 23885).
C.  Paratype, ♂  (MZUESC 23884) Dorsal view. D.  Paratype, ♂  (MZUESC 23884) ventral view.
E. Aechmea lamarchei Mez; F. Mussununga, the natural habitat at the type locality.

A. Map showing thedistribution of Phyllodytes gravata sp. nov. and its sister species, P. amadoi and Phyllodytes sp. 7. in southern Bahia, northeastern Brazil. 
B. Phyllodytes gravata sp. nov., paratype, ♂ (MZUESC 23915). C. Phyllodytes amadoi, ♂ (MZUESC 24030 – photograph by  Tadeu T.  Medeiros). D. Phyllodytes sp. 7, ♂.

Phyllodytes gravata sp. nov.


Laisa Souza dos Santos, Miguel Trefaut  Rodrigues and Iuri Ribeiro Dias. 2026. Another Piece in the Puzzle: A New Species of Phyllodytes Wagler, 1830 (Anura, Hylidae) from the Atlantic Forest of southern Bahia, northeastern Brazil. European Journal of Taxonomy. 1048(1); 62–83. DOI: doi.org/10.5852/ejt.2026.1048.3235 [2026-03-27]

Monday, April 6, 2026

[Herpetology • 2025] Phyllopezus sapirangaUncovering Neotropical Rock Geckos’ Diversity: Multiple Data Sources on an Integrated Taxonomic Approach reveal A New Species of Phyllopezus Peters, 1878 (Squamata: Phyllodactylidae) from northeastern Brazilian Atlantic Forest

 

 Phyllopezus sapiranga
Dubeux, Vieira Dubeux, Neves, Werneck, Rodrigues, Mott & Nunes, 2025
 
 
Abstract
Using an integrated taxonomic approach based on a robust data set including external morphology, cranial anatomy, hemipenial morphology, scale microstructure, and molecular data, we describe a new species of gecko of the genus Phyllopezus from mountains in the northeastern Brazilian Atlantic Forest. The species is currently known to occur in Serra da Jiboia, municipality of Elísio Medrado, Bahia state, and Serra de Itabaiana, municipality of Areia Branca, Sergipe state. The new species is genetically related and more morphologically similar to Phyllopezus diamantino and Phyllopezus selmae, sharing all diagnostic characteristics for both these species, but distinguished from their congeners by meristic and morphometric characters. The new species is the first Phyllodactylidae to have its hemipenial morphology described and together with the cranial anatomy and the description of the microstructures of the dorsal scales provided here, it encourages the use of new approaches for the description of the cryptic species present in this species complex.
 
Keywords: Cryptic diversity, Integrative taxonomy, Morphological data, Molecular phylogeny, Hemipenial morphology, Cranial anatomy, Scale microstructure

  Coloration in life of Phyllopezus sapiranga sp. nov.
(A–E) Holotype [male, CHUFPE-R 1962],
(F) Male paratype [CHUFPE-R 1960]; (G) Juvenile paratype [CHUFPE-R 1972].

Phyllopezus sapiranga sp. nov.

Etymology. The specific epithet is a homage to Marco Antônio de Freitas (also known as Marco "Sapiranga"), a herpetologist whose tireless efforts in research, management and fiscalization of several protected areas in the state of Bahia, has helped and helps contribute to the knowledge and conservation of Brazilian herpetofauna.


 
Marcos J.M. Dubeux, Gisele M.N. Vieira Dubeux, Jessika M.M. Neves, Fernanda P. Werneck, Miguel T. Rodrigues, Tamí Mott and Pedro M.S. Nunes. 2025. Uncovering Neotropical Rock Geckos’ Diversity: Multiple Data Sources on an Integrated Taxonomic Approach reveal A New Species of Phyllopezus Peters, 1878 (Squamata: Phyllodactylidae) from northeastern Brazilian Atlantic Forest. Zoologischer Anzeiger. 319; 173-195. DOI: doi.org/10.1016/j.jcz.2025.09.011 [November 2025] 

Friday, March 20, 2026

[Fungi • 2026] Gibellula mineiraThe Silent Hunters of Spiders: Discovering A New Gibellula (Ascomycota: Cordycipitaceae) Fungus in the Brazilian Atlantic Forest


Iguarima censoria (Anyphaenidae) spiders
unparasitized and parasitized by Gibellula mineira sp. nov.
Santos, Mendes-Pereira, Ribeiro & Kloss. 2026 

 
Abstract
In tropical forests, there is a high diversity of parasites that use arthropods as resource, particularly arachnids. One of the most frequent groups of spiders’ parasites in tropical forests are fungi of the genus Gibellula, for which a considerable knowledge gap remains in these environments. In this study, we present the description of a new species that infects spiders of the species Iguarima censoria (Anyphaenidae) in the Brazilian Atlantic Forest, Gibellula mineira sp. nov. We also described the prevalence of the new fungal species in the host spider population and evaluated whether the host size influences their probability of parasitism. Morphological and molecular analyses revealed that G. mineira represents a distinct species forming a clade with 100% support of bootstrap and showing a close phylogenetic relationship with Gibellula aurea. The characteristics that distinguish it from other species of the genus include light brown hyphae, white and slightly larger conidiophores, and thinner phialides. We observed a high prevalence of parasitism in this interaction, reaching 25% of the observed I. censoria population. Furthermore, we noted that the cadavers of parasitized spiders are exclusively attached to the underside of leaves, following the typical pattern observed for Gibellula species. Parasitism is more frequent in smaller I. censoria individuals, which is probably associated with thinner cuticles or higher foraging activity in smaller individuals. We suggested that G. mineira is an important natural enemy of I. censoria, directly influencing the population dynamics of this spider and expanding our knowledge of the ecology and biodiversity of araneopathogenic fungi.
 
Keywords: Hypocreales, Araneae, Behavioral manipulation, Parasitism, Araneopathogenic fungi


 Iguarima censoria (Anyphaenidae) spiders unparasitized and parasitized by Gibellula mineira sp. nov.
(A) Unparasitized individual foraging in vegetation; (B) Silk retreat built by unparasitized spiders on the leaf lamina;
(C) Adult I. censoria individual infected by G. mineira at an early stage of fungal development; (D) G. mineira colony at mature stage of development;
(E) I. censoria individual showing newly formed synnemata (white); (F) I. censoria individual showing mature synnemata (light brown);
(G) Detail of a white synnema, at the beginning of development, with conidiophores showing chains of conidia; (H) Developed light brown synnema, with dense, white conidiophores.
Scale bars: E, G, H = 1 mm.  

Gibellula mineira sp. nov. 



Aline dos Santos, Thairine Mendes-Pereira, Camila de Fátima Ferreira Ribeiro and Thiago Gechel Kloss. 2026. The Silent Hunters of Spiders: Discovering A New Gibellula (Ascomycota: Cordycipitaceae) Fungus in the Brazilian Atlantic Forest. Fungal Biology. 130(3); 101748. DOI: doi.org/10.1016/j.funbio.2026.101748

Sunday, January 11, 2026

[Ichthyology • 2026] ‘Geophaguspirangaensis • A New endemic pearl cichlid of the ‘Geophagusbrasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River Basin, southeastern Brazil

 

Geophagus’ pirangaensis  Assis, Dergam & Henschel, 

in Assis, Dergam, Cunha, Machado, Hrbek, Vicente, Queiroz et Henschel, 2026

Abstract
A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular-based species delimitation methods coupled with morphological diagnosis. For this, we developed a matrix containing 27 sequences of the mitochondrial gene cytochrome c oxidase subunit I (COI) of species of the ‘G.’ brasiliensis species group obtained from GenBank and three new sequences generated in this work. The species delimitation method applied to the morphological characters was Population Aggregation Analysis (PAA), and the species delimitation methods applied to the nucleotide sequences were the branch coalescence methods: Bayesian Poisson Tree Processes (bPTP), General Mixed Yule Coalescent (GMYC) single-threshold and GMYC multi-threshold. The three molecular-based species delimitation methods corroborate that the haplotypes of ‘Geophagus’ from the Piranga River represent a new species distinguished from all other in the ‘G.’ brasiliensis species group by exclusive presence of clear, rounded spots in the posteriormost dorsal-fin rays in fixed adult specimens, and the combination of the following morphological characters: long snout (46.22%–52.74% of head length), tall head (94.08%–101.15% of head length), terminal mouth, 25 or 26 longitudinal scales on the E0 series, 14 or 15 spines on the dorsal fin, absence of bluish dots on the most anterior soft rays of the anal fin in live specimens and absence of bluish and longitudinal lines in the basal region of the caudal fin of live specimens. This work is the first description of a new species of the ‘G.’ brasiliensis species group from the Doce River basin.

Keywords: Atlantic forest, fish taxonomy, freshwater fish, Geophagini, integrative taxonomy, mitochondrial DNA

Geophagus’ pirangaensis, new species from Piranga River, upper Doce basin, Ponte Nova municipality, Minas Gerais, Brazil:
top, MZUFV13723, live subadult specimen, 63.61 mm SL, collected by E. Henschel and photographed by C.E. de Assis;
bottom, MZUFV14666, live adult specimen, 96.21 mm SL, collected by C.E. de Assis and photographed by E. Henschel.
Scale bar: 10 mm.

Geophagus’ pirangaensis sp. n. Assis, Dergam & Henschel

 Diagnosis: G.’ pirangaensis possess a unique diagnostic feature within the ‘G.’ brasiliensis group characterized by the presence of clear, rounded spots in the posteriormost dorsal-fin rays of fixed adult specimens (vs. absence, or, when present, spots are elliptical). It also differs from ‘G.’ brasiliensis by having a considerably longer snout (46.22%–52.74% HL vs. 38.36% HL) and terminal mouth (vs. subdorsal); from ‘G.’ diamantinensis by having a taller head (94.08%–101.15% HL vs. 77–86% HL) and terminal mouth (vs. subterminal); from ‘G.’ iporangensis by having a caudal fin with a rounded distal margin (vs. straight distal caudal-fin margin) and 25 or 26 longitudinal scales in the E0 series (vs. 27 or 28); from ‘G.’ itapicuruensis by having a dark and rounded mid-lateral spot of live specimens (vs. dark and vertically elliptical mid-lateral spot) and 14 or 15 spines on the dorsal fin (vs. 13); from ‘G.’ multiocellus by the absence of small bright spots in the central region of the bluish spots on the caudal fin of living specimens (vs. presence) and terminal mouth (vs. subterminal); from ‘G.’ obscurus by having small bluish spots in the opercular region of living specimens (vs. large bluish spots in the opercular region); from ‘G.’ rufomarginatus by the absence of bluish dots on the most anterior soft rays of the anal fin of living specimens (vs. presence), presence of denticles on gill rakers of the first branchial arch (vs. absence) and terminal mouth (vs. subterminal); and from ‘G.’ santosi by the absence of bluish and longitudinal lines in the basal region of the caudal fin of living specimens (vs. presence) and terminal mouth (vs. subterminal).


Cidimar E. de Assis, Jorge A. Dergam, Amanda F. Cunha, Valéria N. Machado, Tomas Hrbek, Natállia M. de F. Vicente, Victor de Queiroz and Elisabeth Henschel. 2026. A New endemic pearl cichlid of the ‘Geophagusbrasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River Basin, southeastern Brazil. Journal of Fish Biology. DOI: doi.org/10.1111/jfb.70324 [05 January 2026]  

Monday, December 29, 2025

[Botany • 2024] Passiflora natalensis (Passifloraceae) • A New Species from the Atlantic Forest of northeastern Brazil


Passiflora natalensis G.L.Silva & Mezzonato,   

in Silva, Roque, Queiroz et Mezzonato-Pires. 2024. 
 
Abstract
A new species of Passifloraceae sensu stricto, Passiflora natalensis, from the Atlantic Forest of Rio Grande do Norte, Brazil, is described. It differs from P. cincinnata mainly by these five characteristics: i) the presence of two to three smooth and lustrous glands in the base of the petiole; ii) always 5-lobed leaves, with the presence of one or two pairs of horizontal slits in the leaf blade’s central lobe; iii) none, one or two pairs of horizontal slits in adjacent lobe, iv) absence of the operculum, a rare characteristic in Passiflora species and, v) a sparsely pubescent ovary. Commentaries concerning its morphological traits and similar species, geographic distribution, ecology, preliminary conservation status, and photos are provided.

Keywords: biodiversity; Conservation Units; Northeast Region; Passiflora; Restinga

Illustration of Passiflora natalensis sp. nov.
A-D. Leaf variations, adaxial view: A. One horizontal pair of slits in the central lobe. B. Two horizontal pairs of slits in the central lobe. C. Two horizontal pairs of slits in the central lobe and one horizontal pair of slits in the adjacent lobe. D. One horizontal pair of slits in the central lobe and two horizontal slits in the adjacent lobe. E. Detail glands on the petiole. F. Flower. G. Longitudinal section of the flower. H. Fruit. I. Habit. Illustration by Rhudson Cruz.

Passiflora natalensis sp. nov.
A. Habit. B. Petiolar glands. C. Leaf blade, adaxial view with horizontal slits in central and adjacent lobe (white arrows). D. Bracts. E. Flower. F. Longitudinal section of the flower. G. Fruit. Photos by Silva, G.L.

Passiflora natalensis G.L.Silva & Mezzonato, sp. nov. 

Type: BRAZIL. Rio Grande do Norte: Natal, Ponta Negra, Rota do Sol, outside Barreira do Inferno, stuck in cashew tree branches, 48 m, 5º53’45.1” S, 35º10’38.9” W, 20 June 2023, fl, fr, G.L. Silva 313 (holotype: RN! [RN00007336]; isotypes: CESJ!, RB!).
 
 The new species differs from P. cincinnata by the presence of two to three smooth glands (vs. two, crateriform); leaf blades always 5-lobed from young stages to maturity in the same plant (vs. (3)-5-lobed), always having a pair or two of horizontal slits in the central lobe (vs. absent). It also differs by the sometimes present pair or two of horizontal slits in the adjacent lobe (vs. absent); eight filament series of the corona (vs. 13-17), two outer series (vs. four), six inner series (vs. 9-13), the sparsely pubescent ovary (vs. glabrous) and the absence of the operculum (vs. filamentous operculum) (Table 1).

Etymology ‒ The specific epithet honors the city of Natal and the “Parque Estadual Dunas de Natal” Natal Dunes State Park, where this new species was seen for the first time. The park is the state’s first Conservation Unit, created in 1977 and recognized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) as part of Brazil’s Atlantic Forest Biosphere Reserve IDEMA, 2021).

Passiflora natalensis compared to its most similar species, P. cincinnata.
A-B: Passiflora natalensis sp. nov. A. Flower. B. Longitudinal section of flower with the absence of the operculum (white arrows where normally operculum can be found in Passiflora species).
C-D. P. cincinnata: C. Flower. D. Longitudinal flower section with filamentous operculum (white arrows). Photos by Silva, G.L.


Gláucia Lidiane da Silva, Alan de Araújo Roque, Rubens Teixeira de Queiroz and Ana Carolina Mezzonato-Pires. 2024. Passiflora natalensis, A New Species of Passiflora (Passifloraceae sensu stricto) from the Atlantic Forest of northeastern Brazil. Acta Botanica Brasilica. 38; DOI: doi.org/10.1590/1677-941X-ABB-2023-0282  
 Researchgate.net/publication/387327238_Passiflora_natalensis_a_new_species_from_the_Atlantic_Forest_of_NE_Brazil

Thursday, December 11, 2025

[Herpetology • 2025] Brachycephalus lulai • A New Species of Brachycephalus (Anura: Brachycephalidae) from Serra do Quiriri, northeastern Santa Catarina state, southern Brazil, with A Review of the diagnosis among species of the B. pernix group and proposed conservation measures

 

 Brachycephalus lulai 
Bornschein, Pie, Nadaline, Confetti, Blackburn, Stanley, Mari, Alves, Sandretti-Silva, Lima & Ribeiro, 2025

 
Abstract
Brachycephalus are miniaturized diurnal frogs inhabiting the leaf litter of the Brazilian Atlantic Forest, mainly in montane areas. The genus includes 42 currently recognized species, 35 of which being described since 2000. This study describes a new species of Brachycephalus from the B. pernix species group discovered at Serra do Quiriri, Santa Catarina, Brazil. Morphological and acoustic comparisons were made with other species in the species group, and high-resolution computed tomography was used for osteological examination. The phylogenetic position was based on partitioned Bayesian analysis of mitochondrial (16S rRNA) and nuclear DNA sequences (β–fibrinogen, ribosomal Protein L3, and tyrosinase exon 1). We collected 32 individuals and recorded 13 calls of the new species. It is distinguished by 18 characters including snout–vent length 8.9–11.3 mm for males and 11.7–13.4 mm for females, general bright orange coloration of the body with small green and brown irregular points, and advertisement call including note groups (two notes per group, with 1–4 pulses per note). Phylogenetic data indicate that the new species is closely related to B. auroguttatus and B. quiririensis, which also occur at Serra do Quiriri. A review of diagnoses among species of the B. pernix group is provided. We propose classifying the new species as Least Concern. Serra do Quiriri experienced semi-arid periods in the Quaternary, with forests likely occurring at lower altitudes. As the climate became wetter, these forests expanded upward as cloud forests, forming patches amidst grasslands, leading to speciation by allopatry (microrefugia) of B. quiririensis, B. auroguttatus, and the new species. This process continues, with recent observations of Brachycephalus colonizing newly formed cloud forests at high altitudes. We propose the creation of the Refúgio de Vida Silvestre (RVS) Serra do Quiriri to protect this and other endemic species, without requiring government acquisition of private land.

Holotype of Brachycephalus lulai sp. nov. (MHNCI 11592), male, in life.
 (A) Anterolateral view. (B) Ventral view. In B, white arrow indicates the presence of the linea masculinea.
Photographs by Luiz F. Ribeiro.

Variation in coloration of paratypes of  Brachycephalus lulai sp. nov.
 Column one and column three show specimens in dorsal view in life and in preservative, respectively. Column two and column four show specimens in ventral view in life and in preservative, respectively. A1–A4 = MHNCI 11612. B1–B4 = MHNCI 11598. C1–C4 = MHNCI 11596.
D1–D4 = MHNCI 11599. E1–E4 = MHNCI 11600. F1–F4 = MHNCI 11594.
Scale bars equal 5 mm. Photographs by Luiz F. Ribeiro.

Brachycephalus lulai sp. nov.

Diagnosis: Brachycephalus lulai sp. nov. is identified as a member of the B. pernix group (sensu Pie et al. [6] and Ribeiro et al. [13]) by having a bufoniform body shape (Figs 1–4), absence of dermal co–ossification, and presence of linea masculinea (Fig 2B). Brachycephalus lulai sp. nov. is distinguished from all of the species in the genus by the following combination of characters: 1) body shape bufoniform; 2) snout shape in dorsal view rounded; 3) SVL 8.9–11.3 mm for males and 11.7–13.4 mm for females (Table 1); 4) proportion of HL/SVL 32.5–41.4% for males and 31.8–34.9% for females; 5) presence of linea masculinea in males; 6) absence of dermal co-ossification; 7) dorsum with smooth texture; 8) sides of the body with densely rough texture; 9) tip of fingers I rounded, II rounded, and III pointed; 10) toe V externally absent; 11) outer metacarpal tubercle present; 12) iris black; 13) general color bright orange with small green irregular dots on sides of the body and belly and sometimes with brown dots on sides of the body; 14) general color in preservative pale cream with small light gray to dark gray irregular dots on sides of the body and belly and sometimes with dark spots on sides of the body; 15) advertisement call including note group; 16) two notes per note group; 17) advertisement call including attenuated notes; and 18) up to four pulses per note. The comparison with our ...

Etymology: The specific epithet honors Luiz Inácio Lula da Silva, who has been elected President of Brazil on three occasions. Through this tribute, we seek to encourage the expansion of conservation initiatives focused on the Atlantic Forest as a whole, and on Brazil’s highly endemic miniaturized frogs in particular.
 


Marcos R. Bornschein, Marcio R. Pie, Júnior Nadaline, André E. Confetti, David C. Blackburn, Edward L. Stanley, Renata de Britto Mari, Gabriel Silveira Alves, Giovanna Sandretti-Silva, Felipe Farias de Andrade Lima, Luiz F. Ribeiro. 2025. A New Species of Brachycephalus (Anura: Brachycephalidae) from Serra do Quiriri, northeastern Santa Catarina state, southern Brazil, with A Review of the diagnosis among species of the B. pernix group and proposed conservation measures. PLoS One. 20(12): e0334746. DOI: doi.org/10.1371/journal.pone.0334746 [December 10, 2025]

Sunday, November 30, 2025

[Herpetology • 2025] Ololygon paulofreirei • Taxonomic Assessment of Ololygon gr. argyreornata (Anura: Hylidae) from northern Atlantic Forest reveals A New Species from the Pernambuco Endemism Centre, northeastern Brazil


Ololygon paulofreirei
Roberto, Ávila, de Lima & Santos, 2025 
 

Abstract
The Atlantic Forest in Brazil is a highly threatened biome, recognized as a biodiversity hotspot that hosts numerous endangered species with restricted distributions and facing intense human pressures. The Pernambuco Endemism Centre (PEC), located in Northeastern Brazil, represents one of the most concerning regions within the Atlantic Forest, as it comprises small, fragmented patches of pristine forest harboring several endangered species. Additionally, many species may be threatened but remain undocumented due to a lack of taxonomic studies, particularly within cryptic species complexes. In this study, we assessed the taxonomic status of populations assigned to the genus Ololygon from the state of Pernambuco. This genus presents several cryptic species with subtle morphological differences. Based on morphological, molecular, and acoustic data, we conclude that the populations from the state of Pernambuco constitute a previously undescribed species. Furthermore, we update the geographic distribution of the Ololygon gr. argyreornata species group, providing new morphological and acoustic data for O. skuki from the northern coast of Bahia state, and redescribe the advertisement call of O. argyreornata from Linhares, Espírito Santo.

Keywords: cryptic species; integrative taxonomy; Ololygon skuki; Scinaxinae; vocalization



Ololygon paulofreirei


  Igor Joventino Roberto, Robson Waldemar Ávila, Marcelo G. de Lima and Ednilza Maranhão dos Santos. 2025. Taxonomic Assessment of Ololygon gr. argyreornata (Anura, Hylidae) from northern Atlantic Forest reveals A New Species from the Pernambuco Endemism Centre, northeastern Brazil. Amphibia-Reptilia. DOI: doi.org/10.1163/15685381-bja10241 [23 Oct 2025] 
 facebook.com/aldeiadagente/posts/1371425611660473


Friday, November 21, 2025

[Herpetology • 2025] Dryadobates gen. nov., Dryadobates bokermanni, D. lutzi ... • Museomics and the Systematics of the Atlantic Forest Nurse Frogs (Dendrobatoidea: Aromobatidae: Allobatinae)

 

Dryadobates lutzi
Dryadobates bokermanni

Grant, Lyra, Hofreiter, Preick, Barlow, Verdade & Rodrigues, 2025
 
Abstract
For four decades after 1967, four species of nurse frogs were recognized in the Atlantic Forest, namely Allobates alagoanus (Bokermann, 1967), A. capixaba (Bokermann, 1967), A. carioca (Bokermann, 1967), and A. olfersioides (A. Lutz, 1925), but in 2007 they were synonymized due to a lack of morphological differences. Although growing evidence from DNA and bioacoustics suggests that multiple species of nurse frogs inhabit the Atlantic Forest, their taxonomy has not been updated because populations at the four type localities had all vanished by the 1990s, making it impossible to collect tissues for DNA analysis and other data (e.g., vocalizations) from topotypic material. To overcome the lack of modern tissues, we employed museomics to obtain historical DNA from topotypic material of the four nominal species, which we analyzed together with data from extant populations from throughout the Atlantic Forest and Atlantic Forest enclaves within the Caatinga. We found that the Atlantic Forest nurse frogs comprise a well-supported clade of no fewer than 12 species that arrived in the Atlantic Forest via a single invasion from the Guiana Shield. We propose Dryadobates, gen. nov., for this clade, which is the sister group of all other allobatines. We consider the four nominal species to be valid, redescribe them as D. alagoanuscomb. nov.D. capixabacomb. nov., D. carioca, comb. nov., and D. olfersioidescomb. nov., describe two sister species (D. bokermanni, sp. nov., and D. lutzi, sp. nov.) from southern Bahia, and summarize available information for the remaining six undescribed species. The type series of D. olfersioides comprises two species, so we designate a lectotype to clarify the application of the name. Dryadobates alagoanus is extant and broadly distributed, but D. capixaba, D. carioca, and D. olfersioides are presumed extinct, representing 50% of the nominal species of Dryadobates. These results provide a clear and consequential example of the essential role museomics and taxonomy play in understanding diversity loss and setting conservation priorities.
 
Keywords: Dendrobatidae, Mata Atlântica, Classification, Frogs, Genetics, Dryadobates, Museomics.


Dryadobates bokermanni, sp. nov., adult in life.
Adult male holotype (MZUSP 160849, 16.7 mm SVL): A, dorsal view; B, ventral view.
C, adult female topoparatype (MZUSP 160848, 17.8 mm SVL), ventral view. Photographs: T.G.

Dryadobates lutzi, sp. nov., adult male paratypes in life.
 A, dorsal view (MZUSP 160544, 14.7 mm SVL; photograph: M.T.R.);
B, ventral view (MZUESC 20074, 15.5 mm SVL; photograph: Omar Rojas Padilla).

Dryadobates gen. nov.
Dryadobates bokermanni sp. nov.
Dryadobates lutzi sp. nov.

Dryadobates olfersioides comb. nov.
Dryadobates alagoanus , D. capixaba , D. carioca (removed from the synonymy of Dryadobates olfersioides)

Dryadobates alagoanus adult male in life (an individual in the series CHUFPE 1817–1823):
A, dorsal view; B, ventral view.
Photographs: Marcos Dubeux.
 

Taran Grant, Mariana L. Lyra, Michael Hofreiter, Michaela Preick, Axel Barlow, Vanessa K. Verdade, Miguel Trefaut Rodrigues. 2025. Museomics and the Systematics of the Atlantic Forest Nurse Frogs (Dendrobatoidea: Aromobatidae: Allobatinae). Bulletin of the American Museum of Natural History. 2025(472); 1-76. DOI: doi.org/10.1206/0003-0090.472.1.1  [6 May 2025]
https://hdl.handle.net/2246/7504