[Mammalogy • 2026] Phylogenomics and Museomics reveal Five distinct Species of Tiger Cats (Carnivora: Felidae: Leopardus) in South America

 

Leopardus tilcayo  Nogales-Ascarrunz, Aliaga-Rossel, Lescroart & Eizirik, 

in Lescroart, Nogales-Ascarrunz, Cassatt-Johnstone, Bonilla-Sánchez, ... et Eizirik, 2026. 

DOI: doi.org/10.1016/j.cub.2026.08.059

Highlights: 

• First discovery of a novel cat species in over a century: Leopardus tilcayo

• Description of a novel cat subspecies: Leopardus tigrinus antisuyo

• Phylogenomic resolution of the tiger cat complex, revealing five distinct species

• Museomics and novel approaches to assess evolutionary history and genomic diversity

Summary

The evolutionary history of elusive organisms can be characterized through genomic analyses, which have the power to reveal previously unknown taxa even in groups assumed to be well studied, such as cats. We have analyzed complete genomes of 38 individuals from the Neotropical cat genus Leopardus, including 26 individuals representing multiple evolutionary units of the contentious tiger cat (Leopardus tigrinus) species complex. Eight genomes were generated from museum specimens, which allowed the first genetic assessment of the type locality for L. tigrinus in the Guiana Shield. We found that this complex comprises five distinct species, including a novel cat species, discovered in the Bolivian Yungas and described in this study as L. tilcayo. The Peruvian Yungas unit of this complex also represents a distinct taxonomic entity, which we describe here as a novel subspecies, L. tigrinus antisuyo. Our phylogenomic analyses resolve the evolutionary relationships among the tiger cat geographic units, thus stabilizing their recalcitrant taxonomy and enabling adequate conservation assessment of these threatened felids. We also address other aspects of their evolution, including biogeography, past episodes of interspecies admixture, demographic history of each taxonomic unit, and temporal changes in genetic diversity. Altogether, our results clarify the evolutionary history of a complex radiation of wild cats, reveal novel taxa, and serve as a basis for conservation planning on behalf of these elusive wild cats.

 

Keywords: Bolivian Yungas, Peruvian Yungas, Felidae, Guiana Shield, historic DNA, Leopardus, museomics, concordance vector, new species, tilcayo

 

Live specimen of Leopardus tilcayo (sample ID: L. tilcayo BOl-2, voucher ID: MNHN-L2), a newly described tiger cat species from the Bolivian Yungas.

Photo by Paola Nogales-Ascarrunz

 

Family Felidae Batsch, 1788 

Subfamily Felinae Batsch, 1788 

 Leopardus Gray, 1842

Leopardus tilcayo sp. nov. Nogales-Ascarrunz, Aliaga-Rossel, Lescroart & Eizirik 

Type material: Holotype: CBF-11990, adult male. Live-captured and held in captivity, genome sequences NCBI SRA accession SRX30196846. Date: 09-2021; collectors: E. Aliaga-Rosel and P. Nogales-Ascarrunz (see Data S1).

Type locality: La Paz, Nor Yungas, near Arapata village (1,570 m above sea level [a.s.l.]), Bolivia. Coordinates: −16.248594, −67.634691 (WGS84).

Etymology: This species is named after the local name “tilcayo” used for this felid, which is widely known in the Bolivian Yungas zone. The name is treated as an unchanged noun in apposition.

Vernacular name: We propose “tilcayo” as the English common name, preserving the traditional local designation in recognition of its cultural and regional relevance.

Diagnosis: Leopardus tilcayo differs from L. pardinoides by its shorter pelage, lower contrast pattern, more expanded and irregular open rosettes, less bushy tail, and the absence of broad and complete caudal bands (see Data S1). It differs from L. tigrinus by its larger and more irregular flank markings, longer and fuller tail, and irregular caudal blotches. It differs from L. guttulus by its larger, more heterogeneous markings, lower dorsal contrast, and relatively longer tail. L. tilcayo can be distinguished from other Leopardus taxa by a large number of molecular characters. In the nuclear genome, among the 29,288,951 transversion variants, on average 1,392,646 sites differentiate L. tilcayo from L. t. antisuyo and 1,491,301 sites differentiate L. tilcayo from L. pardinoides. For simplicity we provide a list of diagnostic mitochondrial DNA sites (see Data S1).

Jonas Lescroart, Paola Nogales-Ascarrunz, Molly Cassatt-Johnstone, Alejandra Bonilla-Sánchez, Caroline Charão Sartor, Fernando Angulo, Jorge L. Ramirez, Larissa Rosa de Oliveira, Tadeu Gomes de Oliveira, Beth Shapiro, Enzo Aliaga-Rossel, Hannes Svardal and Eduardo Eizirik. 2026. Phylogenomics and Museomics reveal Five distinct Species of Tiger Cats in South America. Current Biology. DOI: doi.org/10.1016/j.cub.2026.08.059 [September 17, 2026]

[Paleontology • 2026] Chosha praecursor • Amphibious stem-insect sheds light on Colonization of Land

Chosha praecursor

Tihelka,  Vásquez, Engel, Schram, Lozano-Fernandez & Cai, 2026

DOI: doi.org/10.1038/s41586-026-10961-2

Abstract

Molecular clock analyses, trace fossils, exceptionally preserved amphibious stem-myriapods and sea scorpions have recently challenged classical assumptions about the timeline of the animal colonization of land, suggesting that terrestrial ecosystems may date back as far as the Cambrian period. However, the early evolutionary history of the most successful clade of animals, the insects, has remained elusive, as the period of their early diversification constrained by time divergence estimates falls within the notorious ‘hexapod gap’ in the fossil record. Here we describe Chosha praecursor gen. et sp. nov. from the Carboniferous period (Late Mississippian epoch, approximately 324 million years ago) Tesnus Formation in Texas. Cross-polarized light imaging reveals that C. praecursor possesses insect apomorphies including an ovipositor and a terminal filament but differs from crown-group insects, most notably with respect to the presence of multisegmented abdominal legs with paddle-like modifications. Our phylogenetic reconstruction recovers C. praecursor as a hexapod, strongly favouring its placement as an early-diverging insect. A revision of three other enigmatic hexapod fossils, the Devonian period Leverhulmia and two undescribed Carboniferous fossils from the Mazon Creek Lagerstätte, demonstrates diverse body organization in Palaeozoic wingless insects. Together, these stem-group fossils represent the earliest uncontested insects and partly reconcile the incongruence between molecular clock estimates and the fossil record. The unusual abdominal gill-like appendages of Chosha suggest a semiaquatic mode of life in at least some stem-insects and revise our understanding of the assembly of insect morphological organization.

Chosha praecursor gen. et sp. nov. 

Erik Tihelka, Carlos Vásquez, Michael S. Engel, Frederick R. Schram, Jesus Lozano-Fernandez and Chenyang Cai. 2026. Amphibious stem-insect sheds light on colonization of land. Nature. DOI: doi.org/10.1038/s41586-026-10961-2 [26 August 2026]

[Paleontology • 2026] Craniomandibular osteology of Dinodontosaurus isiyavamanda sp. nov. (Therapsida: Anomodontia) from the Manda Beds of Tanzania and new support for a younger age for the alleged oldest dinosaurs

 

Dinodontosaurus isiyavamanda

George, Escobar, Moody, Saanane, Day & Larkin, 2026

DOI: doi.org/10.1080/02724634.2026.2692542

Life reconstruction by Gabriel Ugueto

 

ABSTRACT 

Fossils from the Manda Beds of Tanzania have greatly informed on the diversity and evolution of Triassic tetrapods, including on what might be the oldest dinosaurs. Here, a new dicynodont taxon from the Manda Beds is described. It lacks key anatomical traits of known dicynodonts from the Manda Beds, as well as the Sino-African genus Shansiodon to which some of this material was previously referred. The new taxon is referred to the otherwise South American Dinodontosaurus based on the diagnostic presence of frontals with “tab-like” anterior processes and a combination of other traits seen in the genus. This Tanzanian material possesses a predominantly bulbous posterior/median palatal ridge of the premaxilla and a midline groove along the temporal bar, among other traits that are absent in the South American Dinodontosaurus material, indicating it represents a distinct species, here named Dinodontosaurus isiyavamanda sp. nov. Phylogenetic analyses conducted with Bayesian estimation and parsimony support the inclusion of this species in Dinodontosaurus. The unique palate of D. isiyavamanda is hypothesized to be related to resource partitioning, representing different adaptations for food processing than coeval dicynodonts. The presence of Dinodontosaurus suggests the mid-to-upper Lifua Member of the Manda Beds is equivalent to the Dinodontosaurus Assemblage Zone of Brazil and the Chañares Formation of Argentina. Consequently, the mid-to-upper Lifua Member, which includes what are possibly the oldest records of dinosaurs globally, can be confidently interpreted as late Ladinian to Carnian in age, supporting recent research questioning its equivalency with the Cynognathus Assemblage Zone of South Africa.

SYSTEMATIC PALEONTOLOGY

SYNAPSIDA Osborn, 1903

THERAPSIDA Broom, 1905

ANOMODONTIA Owen, 1860

DICYNODONTIA Owen, 1859

DICYNODONTOIDEA Olson, 1944

KANNEMEYERIIFORMES Maisch, 2001

DINODONTOSAURUS Romer, 1943

Diodontosaurus Tupí-Caldas, 1936 [nomen suppressum].

Chanaria Cox, 1968.

Type Species––Dinodontosaurus oliveirai Romer, 1943 (=Dicynodon tener Huene, 1935).

Diagnosis––Medium- to large-sized kannemeyeriiform (maximum skull length ca. 40 cm) with the following unique combination of character states: frontals with a “tab-like” median anterior process; postorbital bone with elongate, curved suborbital process; elongate caniniform process sharply offset from zygomatic arch; and hypertrophied tusks present in large individuals (taken from Kammerer & Ordoñez, 2021).

DINODONTOSAURUS ISIYAVAMANDA sp. nov.

Ruhuhuungualasaurus croucheri Larkin, 1994, p. 2.

Shansiodon sp. Surkov and Benton, 2004, p. 627.

Shansiodon sp. Surkov and Benton, 2008, p. 1126.

Diagnosis––Can be distinguished from both Dinodontosaurus brevirostris and Dinodontosaurus tener by a premaxillary posterior/median palatal ridge that expands anteriorly into a wide, bulbous morphology (does not retain the ridge-like morphology throughout its length), and extends further anteriorly than the point of eruption of the tusks; a midline groove extending along the temporal bar from immediately posterior to the pineal foramen to the posterior end of the postparietal; and mandibular rami that diverge more laterally. Can be further distinguished from Dinodontosaurus brevirostris by the lack of a ridge along the anterior surface of the mandibular symphysis. Can be further distinguished from Dinodontosaurus tener by a wider interorbital region and snout, and a pineal foramen that is not completely anterior to the intertemporal bar (i.e., pineal foramen is at the same anteroposterior level as the anterior portion of the bar).

Etymology––From the Manda words ‘isi ya vamanda’ that translate to ‘country of the Wamanda.’ In reference to the Wamanda people, many of whom were crucial to the discovery of the holotype, but whose individual names were not documented and never credited.

two bulky Dinodontosaurus isiyavamanda walking through dense vegetation 

Life reconstruction by Gabriel Ugueto

Hady George, Juan A. Escobar, Edmund R.R. Moody, Charles B. Saanane, Michael O. Day and Nigel R. Larkin. 2026. Craniomandibular osteology of Dinodontosaurus isiyavamanda sp. nov. (Therapsida: Anomodontia) from the Manda Beds of Tanzania and new support for a younger age for the alleged oldest dinosaurs. Journal of Vertebrate Paleontology. e2692542. DOI: doi.org/10.1080/02724634.2026.2692542 [15 Sep 2026]

 

[Herpetology • 2026] Gegeneophis chandgadi • Exploring Cryptic Diversity in Gegeneophis Peters (Gymnophiona: Grandisoniidae) with A Novel Species from the northern Western Ghats, Maharashtra, India

 

Gegeneophis chandgadi

Shikalgar, Patil, Adhav, Kulkarni, Hiragond, Gramapurohit, Tripathy & Dinesh, 2026

Records of the Zoological Survey of India. 126(3); 

recordsofzsi.com

Abstract

A new species of annulocylix caecilian is described from the genus Gegeneophis based on distinct genetic and morphological features. The species is having both primary and secondary annuli, wherein secondary annuli are concentrated at the posterior half of the body. Molecular analysis reveals that the new species is sister to an unknown lineage from Amboli and Gegeneophis mhadeiensis from the near proximity phylogenetically. Molecular phylogeny suggests the possibility of four other new lineages from the northern Western Ghats. The findings are discussed in the light of cryptic diversity of these limbless amphibians and the need for systematic studies to describe them.

Keywords: Amphibians, annulocylix caecilian, homestead areas, tailless caecilian

Gegeneophis chandgadi sp. nov.

Etymology: The species is named after the ‘Chandgadi language’, which is a distinct dialect of the language Marathi, predominantly spoken in and around the type locality Chandgad, Kolhapur, Maharashtra, India. The species epithet ‘chandgadi’ is treated as a noun in apposition to the generic name.

  Sahil Shikalgar, Rahul N. Patil, Pranjal Adhav, Nirmal U. Kulkarni, N. C. Hiragond, N. P. Gramapurohit, Basudev Tripathy and K. P. Dinesh. 2026. Exploring Cryptic Diversity in Gegeneophis Peters (Amphibia: Gymnophiona: Grandisoniidae) with A Novel Species from the northern Western Ghats, Maharashtra, India. Records of the Zoological Survey of India. 126(3); 221–236.  DOI: doi.org/10.26515/rzsi/v126/i3/2026/173052 [2026-08-27]

https://recordsofzsi.com/index.php/zsoi/article/view/173052 

[Botany • 2026] Begonia neelamorum (Begoniaceae, sect. Monophyllon) • A remarkable New Species from Arunachal Pradesh, Northeast India

 

 Begonia neelamorum  D.Borah & M.Khanal,

in Borah, Khanal, Taram et Gap, 2026.

 taiwania.ntu.edu.tw/abstract/2210 

 facebook.com/TaiwaniaOffice 

Abstract

Begonia neelamorum D.Borah & M.Khanal, sect. Monophyllon, is described as a new species from Arunachal Pradesh, India. It closely resembles B. prolifera A.DC. in having a globose tuber, a single, sessile, basifixed leaf with a uniformly light-green lamina, an inflorescence which arises from the base of the sessile leaf blade, and white staminate and pistillate flowers, but differs in its glandular-hispid indumentum, terete stem, ovate lamina with double-serrate margins, a dichasial cyme and shorter styles. The species description is accompanied by illustrations and photographs, and information is provided on its distribution, phenology, ecology, preliminary conservation assessment and similarity to other species.

Keyword: Arunachal Pradesh, Begonia kayinensis, Begonia oyuniae, Begonia prolifera, Himalaya, Monophyllon, new species

 Begonia neelamorum. A. Habit; B. Flowering branch; C. Inflorescence; D-E. Male flowers, front and back views; F. Female flower, side view, G. Female flower, front view; H. Styles; I. Androecium.

(D.Borah, M.Khanal and G.Neelam 2267)

 Begonia neelamorum. A-C. Habitat

Begonia neelamorum D.Borah & M.Khanal, sp. nov. 

sect. Monophyllon

 Diagnosis: Begonia neelamorum D.Borah & M.Khanal is most similar to B. prolifera A.DC. in having a globose tuber, a single, sessile, basifixed leaf with a uniformly light-green lamina, an inflorescence from the base of the lamina and a symmetric or subsymmetric, cordate leaf bases, but differs in its glandular-hispid indumentum (vs. glabrous to subglabrous), stem terete (vs. adaxially grooved), ovate lamina with double-serrate margins (vs. orbicular-cordate lamina with dentate to slightly incised margins, sometimes tuberculate at the edges), dichasial cymes (vs. thyrsoid cyme), shorter styles, 1 mm long (vs. 3 mm)

Etymology: The specific epithet honours the Neelam clan of the Nyishi tribe of Arunachal Pradesh, who assisted in the collection of the species during a particularly treacherous expedition. Neelam is also the name of the village inhabited by members of the clan and is among the nearest villages to the type locality from which the species was collected. 

Vernacular name: Kobiirhopu Baabrai (Nyishi) 

 Dipankar Borah, Madhusudhan Khanal, Momang Taram and Neelam Gap. 2026. Begonia neelamorum (Begoniaceae sect. Monophyllon), A remarkable New Species from Arunachal Pradesh, Northeast India. Taiwania. 71(4); 617-620. DOI: 10.6165/tai.2026.71.617 [05 August 2026]

 taiwania.ntu.edu.tw/abstract/2210 

facebook.com/TaiwaniaOffice/posts/1465287385621948

[Mammalogy • 2026] Glauconycteris baka & G. lobeke • An Integrated Taxonomic and Conservation Assessment of Glauconycteris (Chiroptera: Vespertilionidae) in Cameroon, with the Description of Two New Species from the Northwestern Congolian Lowland Forest

A. Glauconycteris lobeke sp. nov., ♂, holotype, Djombi village, LNP;
B. G. beatrix, ♂, Pont cassé platform, LNP; 
 C. G. baka sp. nov., ♂, holotype, Mambele village, LNP. 

Gomeh-Djame, Bates, Juste, Suarez-Rubio, Torrent, García-Mudarra, Ayangma, Yettore, Bilong & Bakwo-Fils, 2026

DOI: doi.org/10.3897/zookeys.1282.183038

Not to scale.

Abstract 

The genus Glauconycteris (Vespertilionidae) comprises small, forest-dependent bats distributed across sub-Saharan Africa. Despite its distinctive morphology, the genus remains poorly represented in collections and its taxonomy unresolved. During recent field surveys in southeastern Cameroon, ten Glauconycteris specimens were collected from the Northwestern Congolian Lowland Forest, eight from Lobéké National Park (LNP) and two from the Dja Biosphere Reserve (DBR). Morphometric and molecular analyses assigned these specimens to eight species, including representatives of three species groups (poensis, beatrix, and humeralis). One species, G. superba, is recorded for the first time from Cameroon and two are described herein as new to science, Glauconycteris baka sp. nov. and Glauconycteris lobeke sp. nov. These findings increase the total number of recognised Glauconycteris species to 15 and confirm that G. beatrix, as previously understood, represents a species complex, revealing further cryptic diversity within the genus. By combining taxonomic, ecological, and distributional data, our results indicate that most members of the genus tolerate moderate habitat degradation and that all 11 species recorded from Cameroon occur within or adjacent to at least one protected area. This study provides the first integrated taxonomic assessment of Glauconycteris in Cameroon, refines species distributions, and contributes additional ecological data for three species (G. gleni, G. egeria, and G. curryae) currently listed as Data Deficient on the IUCN Red List. Our findings underscore the importance of continued sampling in the Guineo-Congolian region to better inform the conservation of Africa’s forest-dependent bats.

Key words: Conservation status, cryptic diversity, forest dependent bats, Guineo-Congolian region, integrative taxonomy, molecular phylogenetics

Three small, morphologically similar species of Glauconycteris from Cameroon with dark pelage and wings, a pale shoulder spot and no lateral stripe shown at an enlarged scale to highlight diagnostic external characters. Ventral/lateral views above, dorsal view below.
A. G. lobeke sp. nov., ♂, holotype, AD.2023.11.19.151, Djombi village, LNP; B. G. beatrix, ♂, AD.2023.11.25.182, Pont cassé platform, LNP; C. G. baka sp. nov., ♂, holotype, AD.2023.07.18.18, Mambele village, LNP.  Not to scale.

Additional species of Glauconycteris recorded in Cameroon, illustrating broader variation in size and pelage across the genus. Species order follows Table 1.
A. Glauconycteris superba, ♂, Mes 26, Mba’a village, DBR; B. G. gleni, ♂, (subadult), AD.2024.22.05.222, Yenga fishing site, LNP; C. G. variegata, ♂, AD.2024.Z73, Zega village, LNP;
D. G. argentata, ♂, Mbouroukou école publique, Mount Manengouba National Park; E. G. curryae, ♂, AD.2023.11.25.181, Pont cassé platform, LNP. The focal, closely related species are illustrated at larger scale in Fig. 3. Not to scale.

 

Glauconycteris baka sp. nov.  

Etymology. The species is named in honour of the Baka people, who live in and around LNP, and who have a close relationship with the forest and its wildlife. The name was discussed with members of the local community, including through park rangers, and was positively received, with community members expressing pride in the association. The proposed French name is ‘Chauve-souris papillon Baka’ and the proposed English name is ‘Baka butterfly bat’.

Glauconycteris lobeke sp. nov. 

Etymology. The species is named after Lobéké National Park, where the individuals were captured. We wish to draw attention to the important role the park can play in protecting a highly diverse fauna of Congolian forest bats, including new and rare species. The proposed French name is ‘Chauve-souris papillon de Lobéké’ and the proposed English name is ‘Lobéké butterfly bat’.

 Aicha Gomeh-Djame, Paul J. J. Bates, Javier Juste, Marcela Suarez-Rubio, Laura Torrent, Juan Luis García-Mudarra, Eugenie Agodigo Ayangma, Félécité Yettore, Charles Félix Bilong Bilong and Eric-Moise Bakwo-Fils. 2026. An Integrated Taxonomic and Conservation Assessment of Glauconycteris (Chiroptera, Vespertilionidae) in Cameroon, with the Description of Two New Species from the Northwestern Congolian Lowland Forest. ZooKeys. 1282: 161-204. DOI: doi.org/10.3897/zookeys.1282.183038 [15 Jun 2026]

[Botany • 2026] Begonia mishmiorum (Begoniaceae, sect. Platycentrum) • A remarkable New Species from the Mishmi Hills of Arunachal Pradesh, India

 

Begonia mishmiorum S.Chowdhury, B.Hajong & P.Bharali, 

in Chowdhury, Hajong et Bharali, 2026. 

DOI: doi.org/10.11646/phytotaxa.758.3.7

 

Abstract

A remarkable new species, Begonia mishmiorum sp. nov. (sect. Platycentrum), from Anjaw district of Arunachal Pradesh, India, is described and illustrated. The species is allied to Begonia persistens Y.H.Tan, M.B.Maw & H.B.Ding and Begonia dicressine Wahlsteen but is readily distinguished by a unique combination of characters, notably its conspicuous, persistent bracteoles that are pinkish-white, deltoid to broadly ovate, sparsely hairy, and completely enclosing the ovary, a feature rarely observed within the section. It further differs in having glabrous, terete petioles, asymmetric cordate leaves with a variegated adaxial surface. A detailed taxonomic description, colour photographs, and a comparison table with allied species are provided. The species is currently known only from a single locality Mithumna in Anjaw district, where its habitat is fragmented and declining due to road construction and landslides. Owing to insufficient data on its population size and distribution, it is provisionally assessed as Data Deficient (DD) following IUCN criteria. Further field studies are needed to clarify its conservation status.

Eudicots, Begoniaceae, Cucurbitales, Eastern Himalaya, Anjaw, endemic, new taxon

 Habitat of Begonia mishmiorum sp. nov. 

Begonia mishmiorum S.Chowdhury, B.Hajong & P.Bharali sp. nov. 

§ Platycentrum  

Etymology: The specific epithet “mishmiorum” honours the Mishmi tribe of Arunachal Pradesh recognizing their indigenous heritage and long-standing association with the forests where the species occurs.

 

Sambit CHOWDHURY, Bipankar HAJONG and Pankaj BHARALI. 2026. Begonia mishmiorum (Sect. Platycentrum), A remarkable New Species from the Mishmi Hills of Arunachal Pradesh, India.  Phytotaxa. 758(3); 285-292. DOI: doi.org/10.11646/phytotaxa.758.3.7 [2026-05-26]

[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. 

DOI: doi.org/10.11646/phytotaxa.763.3.1 

Abstract

The authors describe and illustrate a new species of Cryptanthus, C. 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]

[Herpetology • 2026] Allobates tanaru • The First Chlorotic Species of the Superfamily Dendrobatoidea: A New Nurse Frog of the Allobates albiventris Complex (Anura: Aromobatidae) with remarkably greenish hatchlings from Brazilian Amazonia

 Allobates tanaru 

Dantas, Ferrão, Cunha-Machado & Lima, 2026

 DOI: doi.org/10.3099/0006-9698-579.1.1

 Abstract -

While many frogs around the world have blue-green tissues because of the accumulation of a pigment called biliverdin, this had never been observed in nurse or poison frogs until now. In this study, we describe a new species of nurse frog from southwestern Amazonia that breaks new ground in Neotropical amphibian taxonomy: It is the first chlorotic species—with greenish hatchlings—ever recorded in the large superfamily Dendrobatoidea. Previously lumped within Allobates albiventris, integrative taxonomy reveals it as a distinct species, supported by a set of morphological and bioacoustic traits. It differs from most of its congeners by a call consisting of a pair of notes emitted in a single exhalation; males with lateral expansions on fingers II and III, and a white vocal sac covered with melanophores; dark brown oocytes, hatchlings with greenish yolk, and tadpoles with two or three short, pyramidal papillae distributed in a single row on each lateral margin of the anterior lip. Beyond its diagnostic features, this discovery is notable because chlorotic tissues were previously unknown in Dendrobatoidea, a superfamily with more than 350 species known for its terrestrial habitat, territoriality, carrying behavior, and nonchlorotic adults. The distinctive greenish hue seen in embryos of certain species, particularly in the new Allobates, may serve as an adaptation for predator avoidance, and it also highlights the ecological plasticity and morphological diversity within the genus. This opens fresh avenues to study the ecological, evolutionary, and developmental significance of biliverdin in frogs using a lineage wherein the biology contrasts with classic model species.

KEYWORDS: biodiversity, chlorosis, Integrative taxonomy, Madeira River, new species, species delimitation

Color in life of adults of Allobates tanaru sp. nov.
(A–C) Female, INPA-H 45548, SVL 17.4 mm. (D–F) Female, MPEG 45484, SVL 17.5 mm.
(G, I) Male, INPA-H 45552, SVL 17.0 mm. (H) Female, INPA-H 45549, SVL 16.9 mm.
(J–L) Male, INPA-H 45554, SVL 15.8 mm.

Allobates tanaru sp. nov. Dantas, Ferrão & Lima

  

Etymology: The specific epithet tanaru is a noun in apposition and honors the indigenous Tanaru, known in Portuguese as Índio Tanaru and Índio do Buraco (Indigenous Tanaru and Indigenous of the Hole, respectively). Tanaru died on 23 August 2022; he was the last representative individual of a poorly known ethnic group that lived in Rondônia, Brazil. His people were exterminated by gunmen at the behest of illegal loggers in 1995. After that, Tanaru lived isolated for almost 30 years in the Tanaru Indigenous Land, located in the southeast Rondônia, approximately 700 km from Rondônia's capital. Because the Tanaru Indigenous Land does not have a consolidated land demarcation and is surrounded by agricultural farms, the land suffers continuous threats and attacks, some of which started just some days after Tanaru's death. The indigenous Txai Suruí, from the Suruí ethnic group, said: “Known for his solitude, Tanaru resisted the contact with non-indigenous people until his last days after so much trauma and violence. His territory must continue to represent resistance and must be preserved and cared for, becoming a permanent conservation area.”

Vernacular names: Tanaru's nurse frog (English),
Rana Cuidadora de Tanaru (Spanish),
Rãzinha Cuidadora do Tanaru (Portuguese).

Diagnosis: A nurse frog Allobates characterized by the following combination of characters. Small-bodied species, SVL 14.1–17.0 mm (n = 18) in males and 16.9–18.2 mm (n = 9) in females; granular dorsal skin; one subarticular tubercle on finger IV; tip of finger IV reaches the distal phalanx of finger III; cream dorsum with contrasting brown marks; dorsolateral stripe present; conspicuous ventrolateral line absent; translucent-white vocal sac; white ventral surface in males; white chest and belly in females; and dorsal surface of fingers brown. Advertisement calls characterized by the emission of two notes in a single exhalation; with a call duration of 64 ± 4 ms (57–69 ms); first note (18 ± 2 ms; 16–22 ms) shorter than the second (27 ± 2 ms; 24–32 ms); an intercall interval of 275 ± 24 ms (220–309 ms); an intercall-series interval 854 ± 123 ms (645–1,118 ms); and a dominant frequency of 5,518 ± 200 Hz (5,168–5,879 Hz). Hatchlings with greenish yolk. Exotrophic tadpoles with an oral disc; labial keratodont row formula 2(2)/3(1); 13–15 pyramidal and cylindrical papillae on posterior labium; three pyramidal papillae at each end of the posterior labium; cylindrical papillae on the central portion of posterior labium; posterior labium length formulae P-I = P-II > P-III; and light-brown melanophores on tail and fins not forming blotches or spots.

Coloration of freshly laid eggs (A), embryos (B), and hatchlings (C) of  Allobates tanaru sp. nov.

 

 

Silionamã Pereira Dantas, Miquéias Ferrão, Antônio Saulo Cunha-Machado and Albertina Pimentel Lima. 2026. The First Chlorotic Species of the Superfamily Dendrobatoidea: A New Nurse Frog of the Allobates albiventris Complex (Anura, Aromobatidae) with remarkably greenish hatchlings from Brazilian Amazonia. Breviora. 579 (1), 1-35. DOI: doi.org/10.3099/0006-9698-579.1.1 (8 July 2026) 

[Herpetology • 2026] Mesalina bishnoi • A Novel Species of Mesalina Gray, 1838 (Sauria: Lacertidae) from Rajasthan, India

 

Mesalina bishnoi

Ray, Khandal, Sharma, Das, Roy, Girija Sethy & Mohapatra, 2026

 

https://recordsofzsi.com/index.php/zsoi 

Abstract

We describe a new species of the genus Mesalina from Rajasthan, India. The new species is genetically distinct and belongs to the M. watsonana species complex, and differs from all other congeners in a combination of morphological characters, such as 10 upper labials; eight lower labials; two large transparent shields of lower eyelid accompanied with three smaller shields; scales on tibia keeled; ventral plates in eight straight longitudinal series, ventral plates in 30 transverse rows; 34 dorsal granular scales across middle of back; nine collars; five submaxillaries; 24 gulars; four supraoculars; 6-7 supraciliaries; one very large preanal shield surrounded above and at the sides by two rows of smaller scales; 14 femoral pores on each side of the thigh, narrowly separated by 2 scales; 21 lamellae under fourth toe.

Keywords: Desert biogeographic zone, long-tailed, morphology, phylogeny, taxonomy

Mesalina bishnoi sp. nov.
(A–C) holotype (ZSI-R-29523) (in life),
(D) habitat in the type locality.

Mesalina bishnoi sp. nov.

Etymology: The specific epithet bishnoi (noun in apposition) honours the Bishnoi community of Rajasthan, India, an indigenous socio-ecological group renowned for their long-standing traditions of biodiversity conservation and sustainable coexistence with wildlife. Bishnoi cultural tenets, grounded in a deep reverence for nature, have contributed to the protection of numerous desert species and ecosystems in the Thar Desert since the 15th century. By naming this species Mesalina bishnoi, we recognise and celebrate the enduring environmental stewardship of the Bishnoi people and their contribution to the preservation of arid-zone herpetofauna. 

 

  Sumidh Ray, Dharmendra Khandal, Vivek Sharma, Anirban Das, Priyanjoli Roy, Priyadarsi Girija Sankar Sethy, Pratyush P. Mohapatra. 2026. Description of A Novel Species of Mesalina Gray, 1838 (Reptilia: Sauria: Lacertidae) from Rajasthan, India. Records of the Zoological Survey of India. 126(2); 141-151. DOI: 10.26515/rzsi/v126/i2/2026/173143 

https://recordsofzsi.com/index.php/zsoi/article/view/173143

  https://x.com/dharmkhandal/status/2060010700089483475