[Entomology • 2024] Capitamon gen. n., C. capitatum, C. mizoramense, ... • Identity of the Freshwater Crab Indochinamon beieri (Pretzmann, 1966), with the Description of A New Genus and Four New Species (Decapoda: Brachyura: Potamidae) from northeastern India

 

Capitamon n. gen.

 Pati, Mitra & Ng, 2024

  sciencepress.MNHN.fr/en/periodiques/zoosystema/46/23 

 x.com/Publi_MNHN

The precise identity of the potamid freshwater crab, Indochinamon beieri (Pretzmann, 1966), is ascertained, diagnosed and illustrated after examining the type material from Myanmar. The diagnosis/description of the species and subsequent accounts were based on a wrongly identified and illustrated specimen, probably from Nagaland in northeastern India, which caused substantial confusion among carcinologists, who referred to different taxa as I. beieri. Two such taxa from northeastern India are referred to herein as new species of a new genus, Capitamon n. gen., i.e., C. mizoramense n. gen., n. sp. from Mizoram and C. clarki n. gen., n. sp. probably from Nagaland. Capitamon n. gen. also includes two new species, i.e., C. capitatum n. gen., n. sp. (type species) from Arunachal Pradesh and Nagaland, and C. meitei n. gen., n. sp. from Manipur. Indochinamon manipurense (Alcock, 1909) is also assigned to Capitamon n. gen. as it possesses the characteristics of the new genus. Capitamon n. gen. is thus known by five nominal species from northeastern India, while I. beieri is restricted to its type locality in Myanmar, with the previous Indian records revealed to be erroneous. With the exclusion of I. manipurense, Indochinamon Yeo & Ng, 2007, now contains 42 species. An identification key to the species of Capitamon n. gen. is provided.

Keywords: Crustacea, Potamiscinae, Capitamon, Myanmar, identification key, new combination, new species, new genus.

 Capitamon n. gen., 

C. capitatum n. gen., n. sp. (type species) 

 Indochinamon manipurense (Alcock, 1909) is also assigned to Capitamon n. gen. 

Etymology. All the known congeners of the new genus have an ultimate article of the male first gonopod that resembles a bird's head. The genus name is therefore derived from caput, Latin for head, in arbitrary combination with the genus name Potamon. The gender of the generic name is neuter.

Distribution. Capitamon n.gen.is currently known from northeastern India, with its nominal species recorded from Arunachal Pradesh, Manipur, Mizoram and Nagaland states (Fig.1).

C. capitatum n. gen., n. sp. (type species) from Arunachal Pradesh and Nagaland, 

 C. mizoramense n. gen., n. sp. from Mizoram 

C. clarki n. gen., n. sp. probably from Nagaland. 

C. meitei n. gen., n. sp. from Manipur.

Sameer K. PATI, Santanu MITRA and Peter K. L. NG. 2024. Identity of the Freshwater Crab Indochinamon beieri (Pretzmann, 1966), with the Description of A New Genus and Four New Species from northeastern India (Decapoda, Brachyura, Potamidae). Zoosystema. 46(23); 589-615. 

 sciencepress.MNHN.fr/en/periodiques/zoosystema/46/23

  x.com/Publi_MNHN/status/1841516944169521576

[Mollusca • 2025] Hypselostoma pongrati & H. sichomphuense, ... • Two New Species of terrestrial Microsnails of the genus Hypselostoma W.H. Benson, 1856 (Gastropoda: Eupulmonata: Hypselostomatidae) from northeastern Thailand

 

A, B. Hypselostoma pongrati sp. nov. 
 C, D. Hypselostoma sichomphuense sp. nov.  

Tanmuangpak & S. Tumpeesuwan,

in Tanmuangpak, Nahok, Chanlabut, C. Tumpeesuwan et S. Tumpeesuwan, 2025.

 DOI: doi.org/10.3897/zookeys.1265.160661

Abstract

Two new species of hypselostomatid land microsnails, Hypselostoma pongrati Tanmuangpak & S. Tumpeesuwan, sp. nov. from Nong Bua Lamphu Province and H. sichomphuense Tanmuangpak & S. Tumpeesuwan, sp. nov. from Khon Kaen Province, are described based on the morphology of their shell, radula, and genital system. Both new species are very similar in shell shape to H. phupaman from Chaiyaphum Province, possessing a double-keeled last whorl. However, H. pongrati Tanmuangpak & S. Tumpeesuwan, sp. nov. is distinguished by the absence of apertural barriers, whereas H. sichomphuense Tanmuangpak & S. Tumpeesuwan, sp. nov. possesses three apertural barriers, and H. phupaman possesses six or seven. The three species were found on isolated limestone hills in the Chaiyaphum-Khon Kaen-Nong Bua Lamphu-Loei area.

Key words: Apertural barriers, double-keeled last whorl, genital system, limestone hills, radula

Taxonomy

Family Hypselostomatidae Zilch, 1959

Genus Hypselostoma W.H. Benson, 1856

Living Hypselostoma spp.
A, B. Hypselostoma pongrati sp. nov. paratype NHLRU015;
C, D. H. sichomphuense sp. nov. paratype NHLRU033.

 Hypselostoma pongrati Tanmuangpak & S. Tumpeesuwan, sp. nov.

Diagnosis. This new species has a prominent keel on the upper part of the last whorl and a weaker keel on the lower part. Apertural barriers absent (Fig. 3A, G, H, L). Terminal part of the last whorl is adnated to penultimate whorl.

Etymology. This new species is dedicated to the late Pongrat Dumrongrojwattana, our highly respected senior who was an expert on microsnails and who provided us with many land snails references, knowledge, and inspiration.

 Hypselostoma sichomphuense Tanmuangpak & S. Tumpeesuwan, sp. nov.

 

Diagnosis. This new species differs from Hypselostoma phupaman by the presence of a non-prominent lower keel on the last whorl and the absence of basal and parietal apertural barriers. Aperture has three smooth tooth-like swellings (Fig. 4A, G–I), whereas there are no apertural barriers in H. pongrati sp. nov. (Fig. 3A, G–I). Spire shorter than the spire of H. pongrati sp. nov.

Etymology. The specific epithet sichomphuense refers to Si Chomphu District, Khon Kaen Province, northeastern Thailand, where this species was discovered.

 Kitti Tanmuangpak, Benchawan Nahok, Utain Chanlabut, Chanidaporn Tumpeesuwan and Sakboworn Tumpeesuwan. 2025. Two New Species of terrestrial Microsnails of the genus Hypselostoma W.H. Benson, 1856 (Gastropoda, Eupulmonata, Hypselostomatidae) from northeastern Thailand. ZooKeys. 1265: 49-67. DOI: doi.org/10.3897/zookeys.1265.160661

[Arachnida • 2025] Eresus rubrocephalus • The Red-Colored Oddball—A New Ladybird Spider (Araneae: Eresidae) with unusual coloring from Morocco

Eresus rubrocephalus 

Gál, Kovács, Vincze, Keve, Páll-Gergely, Bagyó, Fehér, Bali & Kaszab, 2025.

DOI: doi.org/10.3390/ani15182707 

Abstract

According to our current knowledge, the prothorax of male spiders belonging to the genus Eresus is covered with black hairs. However, during our collection activities in Morocco, we found male specimens showing habitus that can be clearly distinguished from the previously known species based on their pars cephalica of prosoma covered with distinct red hairs. Diagnostic drawings and digital photographs of male copulatory organs, alongside DNA and COI barcoding results, are also presented.

Keywords: velvet spiders; North Africa; genetic analysis; COI analysis; species delimitation

 Prosoma shape in Eresus rubrocephalus sp. n. holotype (lateral view).

 Habitus photo of the Eresus rubrocephalus sp. n. 
(A) Dorsal view, (B) ventral view, and (C) frontal view.

Eresus rubrocephalus sp. n., 

 

  Diagnosis: The habitus of males was like the European and some Asiatic Eresus sp. of the same sex.

In our specimens, as in the Eresus sp. males, the clypeal hood forms a clearly acute angle, and the cephalic region of the prosoma does not overhang the thoracic region posteriorly (Figure 2, Figure 3 and Figure 4) [31]. Our two male specimens differ from all known species males in that the carapace dorsally and ventrally, as well as the chelicerae, are most uniformly carmine red (Figure 4). In the previously known ladybird spider species (E. gharbi, E. solitarius, E. moravicus, E. sandaliatus, E. transcaucasicus, and E. agrinus), pars thoracica is predominantly black compared to the species we described. 

  Etymology: Unlike the previously known coloration of the Eresus genus (sandaliatus group), the prosoma of the examined specimens is uniformly red in color; see “rubrocephalus”.

Simple Summary: In our work, we provide a description of the habitus of a species of ladybird spider found in Northern Africa, specifically Morocco, based on microscopic examination of the palpus and genetic delimitation analysis. The cephalothorax and abdomen of the male spider are both covered with carmine red hairs on the dorsal and ventral sides as well as on the chelicerae. The palpus exhibits several characteristic distinguishing features, such as the course of the palpus conductor plate, the characteristic U-shaped groove, and the uniquely shaped terminal tooth. Both phylogenetic and species delimitation analyses supported the establishment of the new species Eresus rubrocephalus sp. n.

 János Gál, Gábor Kovács, Zoltán Vincze, Gergő Keve, Barna Páll-Gergely, Richárd Bagyó, Enikő Fehér, Krisztina Bali and Eszter Kaszab. 2025. The Red-Colored Oddball—A New Ladybird Spider with Unusual Coloring from Morocco, Eresus rubrocephalus sp. nov. (Araneae: Eresidae). Animals. 15(18), 2707. DOI: doi.org/10.3390/ani15182707  [16 September 2025]

[Gastropoda • 2023] Anauchen whitteni • A New Species of Anauchen Pilsbry, 1917 (Gastropoda: Stylommatophora: Hypselostomatidae) from Guangxi, China

Anauchen whitteni 

Chen, 2023 

DOI: doi.org/10.35929/RSZ.0090  

 Abstract  

Anauchen whitteni sp. nov. is described and illustrated based on specimens collected in Guangxi Zhuang Autonomous Region, southwestern China. The new species is diagnosed by havinh four apertural barriers and a rounded body whorl.

KEYWORDS: taxonomy, land snail, new species, Anauchen, Asia

Anauchen whitteni sp. nov.

Zhe-Yu Chen. 2023. A New Species of Anauchen Pilsbry, 1917 from Guangxi, China (Gastropoda: Stylommatophora: Hypselostomatidae). Revue suisse de Zoologie. 130(1); 89-92. DOI: doi.org/10.35929/RSZ.0090  (25 April 2023) 

[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. 

DOI: doi.org/10.1590/1677-941X-ABB-2023-0282  

 Researchgate.net/publication/387327238

 

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

[Ichthyology • 2025] Sayonara flavolineata • A New Deep-water anthiadid perchlet (Perciformes: Anthiadidae) from Vietnam

 Sayonara flavolineata

Tang, Vo & Gill, 2025

  RAFFLES BULLETIN OF ZOOLOGY. 73; 

  facebook.com/TVictorCN

Abstract

 A new species of deep-water anthiadid perchlet, Sayonara flavolineata, is described from seven specimens collected off Nha Trang, southeastern Vietnam. Based on morphological features, it is assigned to a recently resurrected genus Sayonara Jordan & Seale, 1906, a former junior synonym of Plectranthias. Sayonara flavolineata, new species is distinctive in having yellow and reddish orange stripes when fresh, a horizontal dusky stripe in the middle of spinous dorsal fin, and a slightly concave dorsal profile of the head. It is further distinguished from other anthiadids by the following combination of characters: dorsal-fin rays X, 15; pectoral-fin rays 15–16; branched caudal-fin rays 8+7; lateral-line scales 31–35; circumpeduncular scales 12; predorsal scales extending anteriorly to posterior nostrils; body scales bearing basal cteni; scales present on maxilla, infraorbital, and mandibles; presence of trisegmental pterygiophores in both dorsal and anal fins; and two supraneurals. We updated and revised the record of species previously classified under Plectranthias in Vietnam. Including the new species, five species are now known from Vietnam and are reclassified to recently resurrected genera including Sayonara, Xenanthias, and Zalanthias.

Key words. taxonomy, species diversity, Plectranthias

Fresh colouration of Sayonara flavolineata, new species.
 A, holotype, OIM-E.55852 (field code: Q.01204-2), 101.1 mm SL; B, paratype, NMMB-P 41621 (field code: Q.01204-1), 107.9 mm SL.

Photos by Q. V. Vo.

CHI-NGAI TANG, QUANG VAN VO & ANTHONY C. GILL. 2025. Sayonara flavolineata (Perciformes: Anthiadidae), A New Deep-water anthiadid perchlet from Vietnam.  RAFFLES BULLETIN OF ZOOLOGY. 73; 698–708.

  facebook.com/TVictorCN/posts/25309871345346161

[Paleontology • 2025] Mandocaris polyphaga • A New caridean Shrimp Fossil (Caridea: Acanthephyridae) with exceptionally preserved organs from the Middle Jurassic of La Voulte-sur-Rhône, France

Mandocaris polyphaga

Lagrange, Audo, Odin, De Grave, Fernandez, Dollman & Charbonnier, 2025

www.app.pan.pl

We used propagation phase contrast synchrotron X-ray micro-computed tomography (PPC-SRμCT) on an exceptionally preserved fossil caridean from the Callovian of the La Voulte-sur-Rhône Konservat-Lagerstätte. The tomographic data reveal the shape of the mandible and pereiopodal epipods allowing the description of a new genus and species of Acanthephyridae (Caridea) shrimp, Mandocaris polyphaga gen. et sp. nov. Most organs are exceptionally preserved in either mineral denser to X-ray than matrix, interpreted to be sulfides, or in mineral of lower density than the matrix, interpreted as carbonate/phosphate such as fluorapatite. We herein propose a taphonomic scenario for the preservation of M. polyphaga gen. et sp. nov.: it died from unknown causes not caused by an injury, as no wound is visible, falling on the sediment/water interface, it laid on its right side, and was probably covered by sediments and/or a microbial mat, thus quickly becoming entombed in the anoxic zone of the sedimentary column. Once there, many anatomic structures were replaced by phosphates. Sulfides precipitated concomitantly or quickly afterwards, probably aided by both internal and external source of metal ions. The importance of the external source of metal ions (hydrothermalism) is clear due to the prevalence of sulfides in the ventral side of the specimen, an area more permeable due to its abundance in thin membranes prone to decay. The loss of integrity thereafter led to sediment invading the body cavity, thus obliterating a few ventral anatomic details, including some pereiopodal muscles, part of the hepatopancreas, most of the gills, and possibly reproductive organs. The nodule was then formed, closing the system, and protecting the specimen from further diagenetic degradation.

Key words: Crustacea, Caridea, synchrotron, tomography, anatomy, Konservat-Lagerstätte, Callovian, Middle Jurassic.

Overview of the caridean shrimp Mandocaris polyphaga gen. et sp. nov. (holotype, MNHN.F.A58277) from the Callovian (Middle Jurassic) of La Voulte, France.
Specimen in right lateral (A1) and dorsal (A2) views. Cephalothorax in right lateral view (A3). 3D reconstruction of the holotype in right lateral view (A4), exposing the organs (A5). Abbreviations: a, branchiocardiac groove; a1, antennula; a2, antenna; b1, hepatic groove; e1e, cervical groove; hc, hepatic carina; hs, hepatic spine; mxp3, third maxilliped; phc, posterior hepatic carina; P1–5, pereiopods 1–5; pl1–4, pleopods 1–4; s1–6, pleonites 1–6. White arrows point to the front of the animal.

Mandocaris polyphaga gen. et sp. nov. 

 

Flavien Lagrange, Denis Audo, Giliane P. Odin, Sammy De Grave, Vincent Fernandez, Kathleen Dollman, and Sylvain Charbonnier. 2025. A New caridean Shrimp Fossil with exceptionally preserved organs from the Middle Jurassic of La Voulte-sur-Rhône, France. Acta Palaeontologica Polonica. 70(4); 775-794. DOI: 10.4202/app.01275.2025

https://www.app.pan.pl/article/item/app012752025.html

[Botany • 2024] Strobilanthes siangensis (Acanthaceae) • A New Species from Arunachal Pradesh, East Himalayas

 

Strobilanthes siangensis J.R.I.Wood, Gammi & D.Borah, 

in Wood, Borah, Gammi, Taram et Thungon, 2024.

Gardens' Bulletin Singapore. 76(2); 

  facebook.com: Dipu Borah 

Arunachal Pradesh in northeastern India hosts a diverse array of Strobilanthes Blume species. The occurrence of two previously unreported species, Strobilanthes pubiflora J.R.I.Wood and S. paniculiformis J.R.I.Wood, is documented. Strobilanthes siangensis J.R.I.Wood, Gammi & D.Borah is described as new and discussed in detail. A key to similar species is provided for identification purposes. The paper is illustrated with a map and photographs.

Strobilanthes siangensis J.R.I.Wood, Gammi & D.Borah.
A. Habit. B. Corolla, front view. C. Corolla, side view. (Photos: L. Gammi)

Strobilanthes siangensis J.R.I.Wood, Gammi & D.Borah, sp. nov. 

This species belongs to the group placed by Bremekamp (1944) in his segregate genus Semnostachya Bremek., which is characterised by the spicate inflorescences in which the bracts, bracteoles and calyx lobes are all similarly linear-oblong, the bracts persistent, the stamens included and the corolla usually glabrous on the exterior. In India this group is poorly represented with only five recognised species all occurring in the northeast region (see key below). The new species is possibly most similar to Strobilanthes elongata Clarke in facies (Figs 1E, 1F) but can be immediately distinguished from this and other species in the group by its white corolla which is pubescent on the exterior. 

Wood, J.R.I., Borah, D., Gammi, L., Taram, M. and Thungon, L.T. 2024. New Records and A New Species of Strobilanthes (Acanthaceae) from Arunachal Pradesh, East Himalayas. Gardens' Bulletin Singapore. 76(2); 293 - 301. 

  facebook.com/DipuBorah2/posts/8862833183809142

[Entomology • 2025] Araeopteron maculas, A. simaoensis, ... • Four New and one newly recorded Species of Araeopteron Hampson, 1893 (Lepidoptera: Erebidae: Boletobiinae), with the Checklist of the Genus from China

[1-2]. Araeopteron maculas sp. nov.; 
[3] A. simaoensis sp. nov.; [4] A. submedogensis sp. nov.;
[7-8] A. kononenkoi sp. nov.

Jin, Yao & Han, 2025

DOI: doi.org/10.3897/zookeys.1256.159686 

Abstract

Four new species of the genus Araeopteron Hampson, 1893 are described: A. maculas sp. nov., A. simaoensis sp. nov., A. submedogensis sp. nov., and A. kononenkoi sp. nov., and A. xanthopis (Hampson, 1907) is reported for the first time from China. The new species are diagnosed based on the adult habitus and genitalia, and compared with related species. Meanwhile, the genitalia of A. xanthopis are illustrated and described for the first time in this study.

Key words: Guizhou, new record, new species, Noctuoidea, taxonomy, Xizang, Yunnan

Adults of Araeopteron spp.
1. A. maculas sp. nov., male, holotype (NEFU); 2. A. maculas sp. nov., female, paratype (NEFU);
3. A. simaoensis sp. nov., male, holotype (NEFU); 4. A. submedogensis sp. nov., male, holotype (NEFU);
5. A. ussurica, male (after Fibiger and Kononenko 2008, ZMUC); 6. A. medogensis, male (after Han and Kononenko 2021, NEFU). Scale bars: 1 mm.  

Adults of Araeopteron spp.
7. A. kononenkoi sp. nov., male, holotype (NEFU); 8. A. kononenkoi sp. nov., female, paratype (NEFU);
9. A. legraini (after Bippus 2018, BMNH); 10. A. legraini (after Bippus 2018, BMNH);
11. A. xanthopis, male (NEFU); 12. A. xanthopis, female (NEFU). Scale bars: 1 mm.

 Yuanyuan Jin, Chunhua Yao, Huilin Han. 2025. Four New and one newly recorded Species of Araeopteron Hampson, 1893 (Erebidae, Boletobiinae, Araeopteronini), with the Checklist of the Genus from China. ZooKeys. 1256: 259-273.  DOI: doi.org/10.3897/zookeys.1256.159686  [22 Oct 2025]

[Crustacea • 2024] Tiwaripotamon keeae • A New miniature Species of Freshwater Crab (Decapoda: Potamidae) from the China-Vietnam Border in Napo, Guangxi

Tiwaripotamon keeae 

 Huang, Shih & Ahyong, 2024

DOI: doi.org/10.11646/zootaxa.5476.1.16 

 facebook.com: Chao Huang

Abstract

A new miniature species of freshwater crab from the genus Tiwaripotamon Bott, 1970 (Potamidae), is described from a montane karst area in southern Napo, at the China-Vietnam border. It is the twelfth known species of the genus, and is also the smallest known, with the largest adult specimen observed barely exceeding 20 mm in carapace width. Apart from the small size, features of the eyes, carapace and ambulatory legs further set Tiwaripotamon keeae sp. nov. apart from its congeners. Pairwise genetic distances of the mitochondrial cytochrome oxidase subunit I (COI) gene also support it as a distinct species.

Crustacea, COI, karst, limestone, Potamiscinae, systematics

Tiwaripotamon keeae sp. nov. 

Chao Huang, Hsi-Te Shih, Shane T. Ahyong. 2024. Tiwaripotamon keeae sp. nov. (Crustacea: Decapoda: Potamidae), A New miniature Species of Freshwater Crab from the China-Vietnam Border in Napo, Guangxi.  Zootaxa. 5476(1); 166-176. DOI: doi.org/10.11646/zootaxa.5476.1.16 

 facebook.com/ChaoHuang1777/posts/7429380953851570

[Entomology • 2025] Illiesonemoura wanglanga • A New Species of Illiesonemoura (Plecoptera: Nemouridae) from Sichuan, China

 

 Illiesonemoura wanglanga  

Rehman, Zhu & Du, 2025

DOI: doi.org/10.1080/24750263.2025.2567908

ABSTRACT

A new species of Nemouridae stonefly, Illiesonemoura wanglanga Rehman, Zhu and Du sp. nov., is described from Wanglang Nature Reserve, Sichuan Province, China. The male, female, and nymph of this species are identified and thoroughly documented. This study includes a diagnosis, detailed descriptions of the terminalia, and a comparison of terminalia similarities with closely related species. Furthermore, the female of Illiesonemoura bituberculata Wang and Du, 2023 was recorded for the first time from Sichuan Province, along with updated illustrations of the male. In addition, we provide an identification key to the adult males of Chinese Illiesonemoura species. These findings provide valuable data for future identification and taxonomic studies.

KEYWORDS: Nemouridae, Nemourinae, Illiesonemoura, new species, China

 Illiesonemoura wanglanga Rehman, Zhu and Du sp. nov. holotype male.
 (A) head and pronotum, dorsal view; (B) head and pronotum, ventral view; (C) terminalia, dorsal view; (D) tergum 10 and epiproct, dorsal view; (E) terminalia, ventral view; (F) tergum 10 and paraproct, ventral view.

 Illiesonemoura wanglanga Rehman, Zhu and Du sp. nov.

 Illiesonemoura wanglanga Rehman, Zhu and Du sp. nov.
 (A) type locality habitat; (B) an adult Illiesonemoura sitting on a rock near flowing water; (C) adult habitus. (Photograph Ya-Fei Zhu).

A. Rehman, Y. F. Zhu and Y. Z. Du. 2025. A New Species and female record of Illiesonemoura (Plecoptera: Nemouridae) from China, with a key to Chinese species. The European Zoological Journal. 92(1); 1338-1346. DOI: doi.org/10.1080/24750263.2025.2567908 [21 Oct 2025]

 

[Ichthyology • 2025] Eugnathogobius ganuensis • A New Species of Eugnathogobius (Gobiidae) from Peninsular Malaysia

Eugnathogobius ganuensis

Koreeda, Seah & Motomura, 2025

DOI: doi.org/10.3390/taxonomy5040071

Abstract

The new estuarine goby Eugnathogobius ganuensis n. sp. is described from 5 specimens (4 males: 27.0–31.5 mm standard length; 1 female: 27.5 mm standard length) collected from a small ditch in the lower reach of the Terengganu River basin, east coast of Peninsular Malaysia. The new species is easily distinguished from other congeners, except E. kabilia, by the following a combination of characteristics: 16 segmented caudal-fin rays; 30 or 31 longitudinal scale lows; high first dorsal fin (especially in males); no head pores; shoulder with oblique black band; transverse black markings on each scale; paired black blotches on caudal-fin base; and distinct black dots on upper caudal fin. Although E. kabilia is very similar to the new species, the latter has a shorter jaw in males (well-extended in the former), high first dorsal fin (low), first dorsal-fin second spine length > 16.8% of standard length (<13.6%), throat yellowish in the fresh condition (whitish), and a yellowish second dorsal fin (reddish in males of E. kabilia). Because the type locality of the new species is clearly not a natural environmental feature and no salinity during the low tide, despite being included in the tidal area, the true habitat is suggested as being the upper reaches of estuarine areas. 

Keywords: taxonomy; morphology; Calamiana; South China Sea

 Fresh holotype (male) of Eugnathogobius ganuensis n. sp. (UMTF 13296, 30.0 mm SL).

Fresh paratypes of Eugnathogobius ganuensis n. sp.
((A): KAUM–I. 219716, male; (B): KAUM–I. 219718, male;
(C): UMTF 13297, male; (D): KAUM–I. 219721, female).

Eugnathogobius ganuensis n. sp.

Type locality (A) and live individuals (B–D) of Eugnathogobius ganuensis n. sp., Terengganu, Peninsular Malaysia.

White and black arrows indicate E. ganuensis n. sp. and Oxyeleotris urophthalmus, respectively.

 Reo Koreeda, Ying Giat Seah and Hiroyuki Motomura. 2025. A New Species of Eugnathogobius (Gobiidae) from Peninsular Malaysia. Taxonomy. 5(4), 71. DOI: doi.org/10.3390/taxonomy5040071 [17 December 2025]

 

[Botany • 2025] Begonia sordidissima (Begoniaceae, sect. Baryandra) • Resolving a Taxonomic Enigma: Rediscovery of the Mindanao endemic Begonia sordidissima after over a Century confirms its distinct status from B. mindorensis

 

Begonia sordidissima Elmer, 

in Naive, Along, Rozano et Ruales, 2025. 

DOI: doi.org/10.11646/phytotaxa.730.3.4 

 facebook.com/arciinaive

Abstract

Begonia sordidissima has been considered as a synonym of B. mindorensis since 1923. Our recent fieldwork led to the rediscovery of B. sordidissima in Mindanao after more than a century, prompting a detailed morphological study that confirms its reinstatement as a distinct species. We designate lectotypes for both names and provide an emended description, including new data on pistillate flowers, photographs, updated distribution information, habitat preference, and a preliminary IUCN conservation assessment. This work underscores the critical need for continued field exploration and taxonomic revision in biodiversity-rich yet threatened regions such as the Philippines.

Biodiversity hotspot, megadiversity, nomenclature, Philippines, section Baryandra, Eudicots

Begonia sordidissima Elmer (1915)

MARK ARCEBAL K. NAIVE, ARCHIE A. ALONG, RALPH RJ E. ROZANO and JECO JED J. RUALES. 2025. Resolving a Taxonomic Enigma: Rediscovery of the Mindanao endemic Begonia sordidissima (Begoniaceae) after over a Century confirms its distinct status from B. mindorensis. Phytotaxa. 730(3); 269-276. DOI: doi.org/10.11646/phytotaxa.730.3.4 [2025-11-21]

  facebook.com/arciinaive/posts/1524471125369165

 x.com/begoniARCIIae/status/1991703043910639991

 

[Entomology • 2025] Protohermes sirindhornae • A New Species and New Records of the Dobsonfly Genus Protohermes van der Weele, 1907 (Megaloptera: Corydalidae: Corydalinae) from Thailand

 

Protohermes sirindhornae 

Piraonapicha, Chomphuphuang & Liu, 

in Piraonapicha, Chomphuphuang, Wayo, Tu, Hayashi et Liu, 2025.  

แมลงช้างกรามโตเทพรัตน์  ||  DOI: doi.org/10.58837/tnh.25.8.267194 

  facebook.com/KanyakornPiraonapicha

Abstract

The dobsonfly genus Protohermes van der Weele, 1907 is the most diverse genus within the family Corydalidae of the order Megaloptera. In the present study, we describe a new species of Protohermes, namely Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov., and report three additional species newly recorded from Thailand: P. cangyuanensis Yang & Yang, 1988, P. impunctatus Liu, Hayashi & Yang, 2008, and P. striatulus Navás, 1926. These findings are based on an integrative approach that combines both morphological and molecular data. A key to the males of Thai Protohermes species is provided.

Keywords: Neuropterida, aquatic insects, freshwater ecosystems, molecular identification, COI

Habitus photo of Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov. 
A. Male (Holotype); B. Female (Paratype). Scale bar = 1 cm.

Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov. living specimens, dorsal  view.
A. Male; B. Female. Scale bars = 1 cm.

Male genitalia of Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov. (Holotype from Thailand).
A. Dorsal view; B.Ventral view; C. Caudal view; D. Ectoproct in caudal view. Scale bar = 1 mm.

Kanyakorn Piraonapicha, Narin Chomphuphuang , Kanuengnit Wayo, Yuezheng Tu, Fumio Hayashi and Xingyue Liu. 2025. A New Species and New Records of the Dobsonfly Genus Protohermes van der Weele, 1907 (Megaloptera: Corydalidae: Corydalinae) from Thailand. Tropical Natural History. Supplement 8; 188-202. DOI: doi.org/10.58837/tnh.25.8.267194 [2025-10-14]

  facebook.com/ThaiBGO/posts/1288562939966423

  facebook.com/KanyakornPiraonapicha/posts/4469433176717249