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Tuesday, February 25th, 2025
| Time | Event | ||||||
| 4:16a | [Ichthyology • 2025] Sinocyclocheilus xingrenensis • A New underground Fish (Cypriniformes: Cyprinidae) from Guizhou Province, Southeastern China
Abstract This study describes a new species, Sinocyclocheilus xingrenensis sp. nov., collected from a cave near Xingren City, Guizhou Province, China. Morphologically, the new species can be distinguished from the 80 species currently assigned to the genus Sinocyclocheilus by a combination of the following characteristics: absence of horn-like structures and indistinct elevation at the head-dorsal junction; body scaleless, with irregular black markings scattered above the lateral line; tip of pectoral fin not reaching the pelvic fin origin; tip of pelvic fin not reaching the anus; lateral line complete and curved, with pores 65–77; tip of maxillary barbel reaching the anterior margin of the operculum; and six rakers on the first gill arch. Phylogenetic trees constructed based on mitochondrial genes indicate that the new species represents an independent evolutionary lineage with relatively large genetic differences of 2.8–9.0% for the mitochondrial Cyt b and 2.7–8.5% for ND4. Key Words: Beipanjiang River, Cavefish, morphology, phylogeny, taxonomy
Sinocyclocheilus xingrenensis Luo, Xiao, Zhou, Xiao & Zhou, sp. nov. Diagnosis: Sinocyclocheilus xingrenensis sp. nov. can be distinguished from its congeners by a combination of the following characteristics: (1) absence of horn-like structures and indistinct elevation at the head-dorsal junction; (2) body scaleless, with irregular black markings scattered above the lateral line; (3) eyes large, diameter 16–21% of head length; (4) dorsal-fin rays, iii, 6–7, last unbranched ray serrate along posterior margin; (5) tip of the pectoral fin not reaching the pelvic fin origin; (6) pelvic fin rays, i, 8, tip not reaching the anus; (7) lateral line complete and curved, with pores 65–77; (8) tip of maxillary barbel reaching the anterior margin of the operculum; (9) six rakers on the first gill arch. The major diagnostic characters for new species and related species are summarized in Table 3. Etymology. The specific epithet “xingrenensis” refers to the type locality of the new species: Xingren City, Guizhou Province, China. We propose the common English name “Xingren Golden-lined Fish” and the Chinese name “Xīng Rén Jīn Xiàn Bā (兴仁金线鲃)”. Ming-Yuan Xiao, Jia-Jia Wang, Tao Luo, Jia-Jun Zhou, Ning Xiao, Jiang Zhou. 2025. Sinocyclocheilus xingrenensis (Cypriniformes, Cyprinidae), A New underground Fish from Guizhou Province, Southeastern China. Zoosystematics and Evolution. 101(2): 419-436. DOI: doi.org/10.3897/zse.101.141444 | ||||||
| 7:35a | [Botany • 2020] Dichorisandra forzzae (Commelinaceae) • A New Species from Espírito Santo State, Brazil, with notes on the Dichorisandra acaulis group
Abstract The Dichorisandra acaulis group has its circumscription broadened to include two additional species, viz. D. oxypetala and the herein newly described D. forzzae. Dichorisandra oxypetala has previously not been included in this morphological group due to its deviant vegetative morphology. However, its reproductive morphology is congruent with the D. acaulis group and, thus, it is here included as a member of the later. Dichorisandra forzzae is here described to accommodate the specimens with anthers dehiscent through one apical pore, erroneously identified as D. acaulis in the state of Espírito Santo, Brazil. We provide illustrations, taxonomic comments and an updated identification key for the species of the D. acaulis morphological group. Furthermore, a table of comparison among the morphologically similar species of the Dichorisandra acaulis group is presented. Keywords: Commelinales, Commelinoideae, Dichorisandrinae, Neotropics, Tradescantieae 
Dichorisandra forzzae M.Pell. & Q.Moraes, sp. nov. Quélita S. Moraes, Marco O. O. Pellegrini and Anderson Alves‐Araújo. 2020. Dichorisandra forzzae sp. nov. (Commelinaceae) from Espírito Santo State, Brazil, with notes on the Dichorisandra acaulis group. Nordic J. Botany. DOI: doi.org/10.1111/njb.02654 twitter.com/NordicJBotany/status/1311305565621170177 | ||||||
| 8:34a | [Ichthyology • 2025] Moxostoma ugidatli • the Sicklefin Redhorse (Cypriniformes: Catostomidae)
Abstract The Sicklefin Redhorse is perhaps the largest truly new North American species discovered in the last century, and the species is herein described as Moxostoma ugidatli, new species. Sicklefin Redhorse differ from other red-tailed redhorse based on the presence of elongate first through third dorsal-fin rays, and from all other redhorse by having plicate lips with deep, branching grooves distally (vs. lips papillose or unbranching) and by having moderately molariform pharyngeal teeth (vs. molariform or chisel-like teeth). The Sicklefin Redhorse is found in the upper Tennessee River basin of North Carolina and Georgia in the Little Tennessee and Hiwassee River subbasins. Although the species is not federally protected, it is threatened in North Carolina and endangered in Georgia. The species is known to live to 22 years, with the largest preserved female 500 mm SL, 633 mm TL, 2.561 kg and the largest preserved male 463.2 mm SL, TL unknown, 2.024 kg.
Moxostoma ugidatli, new species Sicklefin Redhorse or Ugidatli (ᎤᎩᏓᏟ) Diagnosis.—Moxostoma ugidatli can be separated from all other Moxostoma by having a moderate to strongly falcate dorsal fin where the first 1–3 rays of the dorsal fin generally extend beyond the last dorsal-fin ray when adpressed (vs. straight to moderately curved dorsal fin with first dorsal rays not extending beyond last dorsal-fin ray when adpressed; Figs. 1, 2) and by having plicate lower lips that branch distally and exhibit deeply branched grooves and deeply transected ridges, particularly posteriorly (vs. papillose lips or plicae that do not branch; Fig. 4). In addition, M. ugidatli can be separated from all other Moxostoma by having moderately molariform teeth on the lower portion of a heavy pharyngeal arch (vs. chisel-like teeth on a light arch in most Moxostoma and highly molariform teeth on a heavy arch in M. carinatum, M. hubbsi, and M. robustum; Fig. 3). Moxostoma ugidatli can be further separated from M. anisurum, M. ariommum, M. austrinum, M. cervinum, M. collapsum, M. congestum, M. duquesnei, M. erythrurum, M. hubbsi, M. lachneri, M. pappillosum, M. rupiscartes, and the undescribed Apalachicola Redhorse, Brassy Jumprock, and Carolina Redhorse by having a red caudal fin (vs. gray to nearly black caudal fin with maybe a slight red or wine-colored tinge as in co-occurring populations of M. duquesnei). Etymology.—ᎤᎩᏓᏟ or ugidatli (pronounced ooh-gee-dacht'lee) is the Cherokee word for the species and means it wears a feather in reference to this being the only species in the region where the dorsal fin is exposed above the water when spawning and its feather shape. Dr. Bob Jenkins had originally proposed a species name based on the falcate fin “falcatus” and used this in reports and correspondence; however, it is a nomen nudum. We felt it important to honor the Cherokee name as it occurs on the unceded territory of the Eastern Band of Cherokee Indians and it is right and proper to refer to the species using the name spoken by its true discoverers. Treated as a noun in apposition. Sicklefin refers to the moderately to extremely falcate shape of the dorsal fin. Robert E. Jenkins, Scott D. Favrot, Byron J. Freeman, Brett Albanese and Jonathan W. Armbruster. 2025. Description of the Sicklefin Redhorse (Catostomidae: Moxostoma). Ichthyology & Herpetology. 113(1); 27-43. DOI: doi.org/10.1643/i2024049 (18 February 2025) | ||||||
| 10:31a | [Botany • 2020] Dichorisandra striatula (Commelinaceae) • A New Species with speckled leaves from the Atlantic Forest, Brazil
Abstract A new species of Dichorisandra from the Brazilian Atlantic Forest is herein described, illustrated, and compared to morphologically similar species. Dichorisandra striatula is characterized by leaf blades with small and discontinuous white stripes on the adaxial surface, hirsutulous indumentum on both surfaces, obovate to broadly obovate petals, and ellipsoid fruits. Information on phenology, habitat, conservation status, and a geographical distribution map are also provided. Keywords: Atlantic Forest; Commelinales; Dichorisandrinae; Tradescantieae  Dichorisandra striatula Q.Moraes & M.Pell., sp. nov. Quélita S. Moraes, Marco O. O. Pellegrini and Anderson Alves‐Araújo. 2020. A New Species of Dichorisandra (Commelinaceae) with speckled leaves from Brazil. Systematic Botany. 44(4); DOI: doi.org/10.1600/036364419X15710776741396 | ||||||
| 2:02p | [Crustacea • 2025] Trapezionida hercules, Typhlonida annieae, Munidopsis giribeti, etc. • New Species of Deep-sea Galatheoidea (Anomura: Galatheidae, Munididae, Munidopsidae) from Central Pacific Seamounts, with remarks on their phylogenetic placement, ha
Abstract Seamounts in the Central Pacific Ocean remain largely unexplored. Squat lobsters, a major deep-sea invertebrate group, are poorly known in this area, whereas recent sampling efforts in the Western Pacific have resulted in a populated database of Galatheoidea Samouelle, 1819. Material recently collected by the E/V Nautilus during several expeditions to Central Pacific seamounts is reviewed herein, revealing the presence of 16 species. Ten species constitute geographic range expansions, and five are new taxa: Trapezionida hercules sp. nov., T. tapina sp. nov., Typhlonida annieae sp. nov., Munidopsis giribeti sp. nov., and M. nemo sp. nov. Using 3D imaging via micro-CT scanning and molecular phylogenetic analysis of COI and 16S mitochondrial genes, these species are described and illustrated, and their phylogenetic positions are revealed. Several of the new species represent highly divergent lineages not closely related to known species, indicating a need to continue exploring the deep ocean in the Central Pacific. The study herein also describes the habitats and biological associations of these species, ranging from corals to chemosynthetic environments. The new data fill an important geographic gap in the distribution of squat lobster species and contribute to understanding the speciation processes and connectivity among seamounts in the Pacific Ocean.  Paula C Rodríguez-Flores. 2025. New Species of Deep-sea Galatheoidea (Anomura: Galatheidae, Munididae, Munidopsidae) from Central Pacific Seamounts, with remarks on their phylogenetic placement, habitat associations, and significance for the biogeography of squat lobsters. Journal of Crustacean Biology. 45(1); ruae080. DOI: doi.org/10.1093/jcbiol/ruae080 | ||||||
| 2:05p | [Entomology • 2025] Merogomphus aryanadensis & M. flavoreductus • Two New Species of Merogomphus Martin, 1904 (Odonata: Anisoptera: Gomphidae) from the Western Ghats, India
Abstract We describe two new species of dragonflies from the Western Ghats Biodiversity Hotspot, Merogomphus aryanadensis sp. nov. from Kerala and M. flavoreductus sp. nov. from Maharashtra, India. Morphologically, these species are closely aligned with M. tamaracherriensis Fraser, 1931, an endemic species of the Western Ghats; however, they are distinguished by unique features in their caudal appendages, accessory genitalia, and body markings. Additionally, both species are considerably smaller than other known Merogomphus spp. found in India. The differential diagnosis presented includes a comprehensive morphological photographic assessment of the two new species described and their two endemic congeners, also from the Western Ghats. We also establish a significant genetic distance between these newly described Merogomphus species and M. tamaracherriensis. Odonata, Aryanad, biodiversity hotspot, Kerala, Maharashtra, phylogeny, Sindhudurg, species discovery, taxonomy   Merogomphus aryanadensis sp. nov.  Merogomphus flavoreductus sp. nov.  Ayikkara Vivek CHANDRAN, Dattaprasad SAWANT, Reji CHANDRAN, Pankaj KOPARDE, Subin Kaniyamattathil JOSE and Krushnamegh KUNTE. 2025. Two New Species of Merogomphus Martin, 1904 (Odonata: Anisoptera: Gomphidae) from the Western Ghats, India. Zootaxa. 5588(2); 201-226. DOI: doi.org/10.11646/zootaxa.5588.2.1 [2025-02-14]  | ||||||
| 2:05p | [PaleoEntomology • 2024] Cretopleciofungivora simpsoni • Flat-footed Females and Missing Males: A New Genus and Species of Pleciofungivoridae (Diptera: Bibionomorpha) represents the First Record of the Family from Mid-Cretaceous Kachin Amber
Abstract A new genus and species, Cretopleciofungivora simpsoni gen. et sp. nov., from the extinct family Pleciofungivoridae (Diptera: Bibionomorpha), is discovered in mid-Cretaceous Kachin amber. Previously, this family was known only from imprints in sedimentary rocks of the Jurassic and the Lower Cretaceous. Discovery of a representative of Pleciofungivoridae in Kachin amber confirms the presence of the family in the Upper Cretaceous. The new species has a unique structure of fore tarsus, with lobed and extended tarsal segments II to IV, a feature hitherto known only in a few species of extant Sciaroidea. Although not particularly rare, the new species is currently known only from female specimens. Possible reasons for this phenomenon, very unusual in Sciaroidea, are briefly discussed, including parthenogenesis as a potentially plausible hypothesis. Keywords: fungus gnats, Sciaroidea, Upper Cretaceous, Burmese amber, swollen tarsomeres Cretopleciofungivora simpsoni gen. et sp. nov. Qingqing ZHANG, Wiesław KRZEMIŃSKI, Jan ŠEVČÍK, Vladimir BLAGODEROV, Agnieszka SOSZYŃSKA and Kornelia SKIBIŃSKA. 2024. Flat-footed Females and Missing Males: A New Genus and Species of Pleciofungivoridae (Diptera: Bibionomorpha) Represents the First Record of the Family from Mid-Cretaceous Kachin Amber. Acta Geologica Sinica. 98(3); 541-547. DOI: doi.org/10.1111/1755-6724.15173 | ||||||
| 2:36p | [Ichthyology • 2025] Barbodes klapanunggalensis • A New Species of blind subterranean fish (Cypriniformes: Cyprinidae) from Klapanunggal Karst Area, West Java, Indonesia
Abstract Barbodes klapanunggalensis sp. nov. is described on the basis of two specimens collected from the subterranean cave system of Klapanunggal karst area, Bogor Regency, West Java Province, Java Island, Indonesia. The new species is unique among its congeners in completely lacking eyes, its ocular vestige being marked by an orbital concavity fully covered with skin, and with no orbital rim. It also differs distinctly from most species of Barbodes by having relatively long paired fins (pectoral fin 26.0–31.4% SL; pelvic fin 21.5–24.4% SL), the adpressed tips of each overlapping the basal area of the adjacent posterior (pelvic and anal, respectively) fins; and the presence of a short pelvic axillary scale with a rounded posterior margin. Barbodes klapanunggalensis sp. nov. is further distinguished from all congeners by the following combination of characters: head length 32.9–35.3% SL; pre-pectoral fin length 32.6–33.6% SL; pre-pelvic fin length 54.0–59.6% SL; anal-fin base length 9.7–11.8% SL; caudal peduncle depth 13.2–18.2% SL; completely nonpigmented body; and all fins with translucent interradial membranes and light cream to brownish rays. As reflected by its highly troglomorphic features, the new species is strictly adapted to cave habitats. Its small population size, coupled with a high level of potential threats to its known habitat, suggest that future conservation efforts will become necessary. Key words: Cave-dwelling fish, coloration, endemic, morphology, silvery barbs
 Barbodes klapanunggalensis Wibowo, Rahmadi & Lumbantobing, sp. nov. English name: Klapanunggal Blind Cave Barb New Indonesian name: Wader Gua Buta Klapanunggal
Diagnosis. A species of Barbodes distinguished from all its congeners by the absence of eyes, as the eye is vestigially replaced by an orbital concavity being fully closed by an epidermal layer, while lacking the orbital rim. The species is also uniquely diagnosed by having relatively long pectoral and pelvic fins, with their adpressed tips each extending past the vertical through the insertion or origin of the next fin posterior to the tip, as to further pass posteriorly about two scales in anteroposterior; and by the presence of a relatively short and rounded axillary pelvic-fin scale, with tip not reaching posterior edge of pelvic-fin base. It is further distinguished from other Barbodes species in having by the following combination of characters: head length 32.9–35.3% of SL; pre-pectoral fin length 32.6–33.6% of SL; pre-pelvic fin length 54.0–59.6% of SL; pectoral fin length 26.0–31.4% of SL; pelvic fin length 21.5–24.4% of SL; anal-fin base length 9.7–11.8% of SL; caudal peduncle depth 13.2–18.2% of SL; body without pigmentation (black dots, bars, stripes, blotches, and triangular markings all absent from lateral surface); all fins with translucent interradial membrane and light cream to brownish rays. Etymology: The specific epithet klapanunggalensis is derived from the type locality, the Klapanunggal karst area, which includes the Cisodong 1 Cave, Nambo Village. The name reflects the unique habitat and geological significance of the Klapanunggal karst area, where the species is likely endemic. Kunto Wibowo, M. Iqbal Willyanto, Anik Budhi Dharmayanthi, Cahyo Rahmadi and Daniel Natanael Lumbantobing. 2025. Barbodes klapanunggalensis, A New Species of blind subterranean fish (Cypriniformes, Cyprinidae) from Klapanunggal Karst Area, West Java, Indonesia, with notes on its conservation. ZooKeys. 1229: 43-59. DOI: doi.org/10.3897/zookeys.1229.135950 |
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