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Wednesday, July 10th, 2024
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| 2:19a | [Herpetology • 2024] Megophrys apatani • On A New Species of Xenophrys (Anura: Megophryidae) from Tale Wildlife Sanctuary, Arunachal Pradesh, India with Comments on the earlier erroneous report as X. maosonensis (Bourret, 1937)
The Maoson horned frog, Xenophrys maosonensis (Bourret, 1937) was originally described as Megophrys longipes maosonensis from Vietnam having distribution in China. Saikia et al. (2019) reported its occurrence from Arunachal Pradesh as a first country record for India with the inclusion of genetic data and morphological descriptions. They arrived at the species-specific identity based on the NCBI BLAST search of molecular sequence data of 12S rRNA and 16S rRNA which showed homology search of 95.4 – 97.5% similarity with X. maosonensis and ‘selective phylogeny’. However, the earlier genetic difference of ca. 4.6% – 2.5 % (12S and 16S, respectively) with X. maosonensis sensu stricto vis-à-vis the specimen from Arunachal Pradesh, India; coupled with the huge biogeographic barrier of ca. 1600 kms. aerial distance between the two localities, makes it very unlikely of such a disjunct distribution of the species. This warranted a re-evaluation on the specific identity of the specimen from India. Now, based on comprehensive phylogeny (including 142 sequences) of the subfamily Megophryinae, the earlier erroneously reported X. maosonensis from India is described here as a species new to science as Xenophrys apatani sp. nov. based on integrative taxonomic approach. Interestingly now, the proposed new species is exhibiting 4.4% to 5.5% genetic distance with the X. maosonensis sensu stricto from Vietnam. Additionally, morphological character differences between the congeneric species reported from India and of X. maosonensis sensu stricto with the proposed new species is provided. A discussion on the biogeographic distribution of Xenophrys in India is made.    Xenophrys apatani sp. nov. Bhaskar Saikia, Bikramjit Sinha, A. Shabnam, et al. 2024. On A New Species of Xenophrys (Anura: Megophryidae) from Tale Wildlife Sanctuary, Arunachal Pradesh, India with Comments on the earlier erroneous report as X. maosonensis (Bourret, 1937). Records of the Zoological Survey of India. 124 (Special issue of ATS 2024); 21-40. DOI: 10.26515/rzsi/v124/i1S/2024/172712 Researchgate.net/publication/381854987_a_new_species_of_Xenophrys_from_Tale_Wi | ||||||
| 10:06a | [Botany • 2024] Guapurium caipirinha (Myrtaceae) • A New Species of jaboticaba from Brazil with pentamerous flowers
Abstract Guapurium caipirinha (Myrtaceae) is a new species of jaboticaba from Minas Gerais state, Southeastern Brazil, which morphologically resembles Plinia oblongata, from which it differs in being a shrub or treelet 1–4 m height, with exclusively pentamerous flowers, and membranous epicarp with very sweet pulp. A detailed morphological description, etymology and vernacular names, information on history, phenology, conservation, habitat and taxonomic notes, a distribution map, and images of living plants and the type specimen are provided. jaboticaba, Myrtaceae, Myrtales, Plinia, Guapurium, Eudicots   João Marcelo Alvarenga Braga, Diego Ferreira da Silva, Eugenio Arantes de Melo, Hélio Caixeta Tiburcio, Adelício Pereira da Silva, Rodrigo Borges Ferreira, Marco Túlio Côrtes de Lacerda and Harri Lorenzi. 2024. Guapurium caipirinha (Myrtaceae), A New Species of jaboticaba from Brazil with pentamerous flowers. Phytotaxa. 652(3); 217-226. DOI: 10.11646/phytotaxa.652.3.3  | ||||||
| 2:03p | [Mollusca • 2024] Grandinenia jiangjilini • A New Species of Grandinenia Minato & Chen, 1984 (Gastropoda: Stylommatophora: Clausiliidae: Garnieriinae) from Guangxi, China
Abstract A molecular phylogenetic study was conducted on genus Grandinenia, based on COI and 16S sequences. A total of eight out of 26 species in the genus, as well as three unidentified species were sequenced. Phylogenetic results supported the monophyly of Grandinenia and the validity of all sampled species and subspecies. A new species, Grandinenia jiangjilini Chen, Lin, Wu & Ouyang, sp. nov., from Guangxi, southern China is identified and described, based on morphological comparison and molecular phylogeny. The discovery indicates that the inflated-fusiform shell is not isolated in genus Grandinenia and the species diversity of the genus still remains to be explored. Key Words: Door snails, karst landscape, phylogeny, taxonomy
Family Clausiliidae Gray, 1855 Subfamily Garnieriinae Boettger, 1926 Genus Grandinenia Minato & Chen, 1984 Grandinenia jiangjilini Chen, Lin, Wu & Ouyang, sp. nov. Different diagnosis: Shell entire (vs. decollated in G. ardouiniana (Heude, 1885), G. gabijakabi Grego & Szekeres, 2014, G. gastrum (Nordsieck, 2005), G. mirifica (Chen & Gao, 1982), G. pallidissima Nordsieck, 2010, G. pseudofuchsi (Nordsieck, 2005), G. rex Nordsieck, 2007, G. rutila Nordsieck, 2016, G. schomburgi (Schmacker & Boettger, 1890), G. takagii (Chang, 2004), G. umbra (Chang, 2004)), hardly decollated, inflated-fusiform (vs. slender-fusiform in all other congeners, except G. mirifica), light yellowish-brown, semitranslucent; teleoconch with broad, blunt and sparse wrinkles (ribs) (vs. without or with thin and dense ribs in all other congeners); peristome not reflected; inferior lamella lower in front than within; penial caecum present (vs. absent in G. fuchsi (Gredler, 1883), G. pseudofuchsi, G. takagii and G. mirifica). Etymology: The species is named after Mr Ji-Lin Jiang who first discovered the new species and assisted in the field survey. Vernacular name: 江氏斜管螺 (Pinyin: jiāng shì xié guǎn luó). Zhong-Guang Chen, Jiao Jiang, Ran-Xi Lin, Guang-Long Xie, Yu-Ting Dai, Xiao-Ping Wu and Shan Ouyang. 2024. A New Species of Grandinenia Minato & Chen, 1984 (Gastropoda, Stylommatophora, Clausiliidae, Garnieriinae) from Guangxi, China. Zoosystematics and Evolution. 100(3): 913-922. DOI: 10.3897/zse.100.126340  | ||||||
| 2:08p | [Ichthyology • 2024] Luciogobius opisthoproctus • A New Species of the Genus Luciogobius Gill, 1859 (Gobiiformes: Oxudercidae) from Taiwan
Abstract A new species, Luciogobius opisthoproctus sp. nov., is described based on 18 specimens collected from Daxi Creek (Yilan) and Babian Creek (Taitung) in Taiwan. The new species is characterized by having a yellowish body with scattered spots on the sides, a black blotch on the caudal fin, the absence of free pectoral-fin rays, and more than 40 vertebrae. The new species can be distinguished from congeners by the following combination of characters: AAA distance (anus to anal-fin origin) shorter than twice the body depth at anus, 4.2–7.2% of standard length (SL); pre-anus length 80.0–92.8% of pre-anal-fin length; snout length 39.7–62.7% of AAA distance; abdominal vertebrae 20–22; caudal vertebrae 20–22; first anal-fin pterygiophore usually inserted behind the second haemal spine. Key words: Actinopterygii, amphidromous, earthworm goby, interstitial habitat, taxonomy, western Pacific
Luciogobius opisthoproctus sp. nov. New English name: Taiwan Earthworm Goby Diagnosis: Luciogobius opisthoproctus sp. nov. is diagnosed by the following combination of characters: total vertebrae 41–43; free pectoral-fin rays absent; second dorsal-fin rays 9–12 (usually 11); anal-fin rays 11–14 (11 or 12); pectoral-fin rays 8–12 (10 or 11); pelvic-fin length more than 50% of pectoral-fin length; AAA distance 4.2–7.2% (mean 5.7%) of SL, 72.1–129.7% (mean 99.9%) of body depth at anus; snout length 39.7–62.7% (mean 52.8%) of AAA distance; pre-anus distance 80.0–92.8% (mean 88.6%) of pre-anal-fin length; and anterior-most pterygiophore of anal fin inserted behind the second haemal spine (Fig. 5). Etymology: The specific name opisthoproctus is from the Greek words opisthe (behind) and proktos (anus), in allusion to the posteriorly positioned anus (shorter AAA distance).  Kuan-Hsun Chen and Te-Yu Liao. 2024. A New Species of the Genus Luciogobius Gill, 1859 (Teleostei, Oxudercidae) from Taiwan. ZooKeys. 1206: 241-254. DOI: doi.org/10.3897/zookeys.1206.118757 | ||||||
| 2:39p | [Crustacea • 2024] Gothus teemo • Morphological and Molecular Evidence for A New xanthid Crab (Brachyura: Xanthoidea: Xanthidae) from Coral Reefs in the South China Sea, with A Review of the Taxonomy of Actaeodes consobrinus (A. Milne-Edwards, 1867)
Abstract A new genus and species within the family Xanthidae MacLeay, 1838, are described from coral reefs in the South China Sea. The new genus, Gothus, with its type species G. teemo sp. nov., is distinguishable from allied genera by characteristics of the carapace, chelipeds, and male pleon. Based on morphological evidence, we tentatively place this genus within the subfamily Euxanthinae Alcock, 1898. However, molecular systematic analysis based on COI, 12S, 16S, and H3 indicates that it does not form a stable monophyletic group with any related subfamily. Another species, Actaeodes consobrinus (A. Milne-Edwards, 1873), is also reclassified into this new genus, based on both morphological and molecular evidence. Key Words: Euxanthinae, integrative taxonomy, Nansha Islands, Xanthidae, Xisha Islands
Family Xanthidae MacLeay, 1838 Subfamily Euxanthinae Alcock, 1898 Gothus gen. nov. Diagnosis: Small species, CW under 10 mm. Carapace broader than long, dorsal surface bearing round granules, regions clearly defined; front wide, not protruding, divided into two slightly triangular lobes by a V-shaped notch; frontal lobes and dorsal inner orbital angle separated by shallow depression; eyestalks densely granulated; area beneath outer orbital angle slightly concave, not forming a subhepatic cavity; anterolateral margin with four teeth, first tooth flattened, sometimes completely reduced to appear as three teeth; posterolateral margin almost straight; subhepatic region densely granulated. Epistome central region with low median projection on posterior margin. Maxilliped 3 granulated, anterior edge of ... Etymology: The genus is named after the game of Go, alluding to the intermingled black and white patterns on the carapace, beneath which lie circular granules resembling the pieces of the game. “-thus” is a common suffix for species names within the Xanthidae family. Gender masculine. Gothus teemo sp. nov. Etymology: The new species is named after Teemo, a character from the MOBA (Multiplayer Online Battle Arena) video game League of Legends. This character, modeled after a raccoon, has a fluffy, diminutive stature with a brown and white intermingled fur coat. This alludes to the new species’ small size, densely covered short setae, and brown-striped coloration. Distribution: Currently known from the type locality at Triton Island, Xisha Islands (Paracel Islands), and Meiji Reef (Mischief Reef), Nansha Islands (Spratly Islands), it inhabits crevices in shallow coral reefs. Zi-Ming Yuan, Wei Jiang and Zhong-Li Sha. 2024. Morphological and Molecular Evidence for Gothus teemo gen. et sp. nov., A New xanthid Crab (Crustacea, Brachyura, Xanthoidea) from Coral Reefs in the South China Sea, with A Review of the Taxonomy of Actaeodes consobrinus (A. Milne-Edwards, 1867). and Evolution. 100(3): 965-987. DOI: doi.org/10.3897/zse.100.117859 | ||||||
| 11:45p | [Paleontology • 2024] Comptonatus chasei • A New iguanodontian Dinosaur (Iguanodontia: Hadrosauriformes) from the Lower Cretaceous Wessex Formation of the Isle of Wight, southern England
Abstract A new iguanodontian dinosaur, Comptonatus chasei gen. et sp. nov., is described from the Lower Cretaceous Wessex Formation of the Isle of Wight. These strata provide an important record of a critical time in the development of iguanodontian diversity. The specimen, which is described here for the first time, was found and excavated in 2013 and represents the most complete iguanodontian skeleton discovered in the Wealden Group for a century. A new taxon is diagnosed by several autapomorphies found in the neurocranium, teeth, coracoid and other parts of the body, together with a unique suite of characters. These include a dentary with a straight ventral border, and a markedly expanded prepubic blade. These features set it apart from the sympatric Mantellisaurus atherfieldensis, Brighstoneus simmondsi and Iguanodon cf. bernissartensis, increasing the known diversity of this clade in the Barremian–early Aptian of England. Keywords: Barremian, Wealden Group, supraoccipitalvomer, diversity Systematic palaeontology Dinosauria Owen, 1842 Ornithischia Seeley, 1887 Ornithopoda Marsh, 1881 Iguanodontia Baur, 1891 Ankylopollexia Sereno, 1986 Styracosterna Sereno, 1986 Hadrosauriformes Sereno, 1997 Comptonatus gen. nov. Etymology: Comptonatus (‘the Compton thunderer’) is a contraction of the words ‘Compton’ on the Isle of Wight and ‘tonatus’, the Latin for thundered, and reflects the place of discovery and the large size of the animal. Location and horizon: The Wessex Formation, ‘middle’ Barremian, Lower Cretaceous. IWCMS 2014.80 was excavated during September–October 2013, from a plant debris bed on National Trust property to the west of the fault in Compton Bay, and close (c. 50 m) to where IWCMS 2013.175, a skeleton of Valdosaurus canaliculatus Galton, Citation1977 (Barrett, Citation2016) was excavated the previous year. The excavation was conducted under the supervision of Dinosaur Isle Museum (IWCMS) and site records and drawings were collected by Mr Stephen Hutt, the then curator. The site exposes a deep (c. 3 m) plant debris bed that occasionally yields articulated dinosaur remains, but frequently produces the trunks of large conifers, usually attributed to Pseudofrenelopsis parceramosa (Francis, Citation1987). Other vertebrate remains uncovered from the excavation site include ganoid fish scales (cf. Scheenstia sp.), an indeterminate crocodilian tooth and several very large, but fragmentary iguanodontian remains, including three pedal phalanges, a neural arch, and some rib sections.
 Comptonatus chasei gen. et sp. nov. Etymology: The specific name honours the late Mr Nick Chase, winner of the Palaeontological Association’s Mary Anning Award in 2018, who made the initial discovery and through his lifetime contributed enormously to the collections at Dinosaur Isle Museum, Isle of Wight, and the Natural History Museum, London (Lockwood et al., Citation2019). Jeremy A. F. Lockwood, David M. Martill and Susannah C. R. Maidment. 2024. Comptonatus chasei, A New iguanodontian Dinosaur from the Lower Cretaceous Wessex Formation of the Isle of Wight, southern England. Journal of Systematic Palaeontology. 22(1); 2346573. DOI: doi.org/10.1080/14772019.2024.2346573 |
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