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Tuesday, January 7th, 2025
| Time | Event | ||||||
| 6:35a | [Crustacea • 2024] Lebbeus parvirostris • A New Species of the thorid shrimp Genus Lebbeus White, 1847 (Decapoda: Caridea) from the Amami Rift hydrothermal vent field in the Ryukyu region, Japan
Abstract A new species of the thorid shrimp genus Lebbeus White, 1847, is described and illustrated on the basis of two specimens collected from the recently discovered Amami Rift hot vent field in the Ryukyu region in southwestern Japan, at a depth of 628 m. Lebbeus parvirostris sp. nov. is morphologically similar to L. microceros (Krøyer, 1841), L. mundus Jensen, 2006, L. saldanhae (Barnard, 1947), L. schrencki (Bražnikov, 1907), L. spongiaris Komai, 2001, and L. tosaensis Hanamura & Abe, 2003, but differs from all of them in the lack of a pterygostomial tooth on the carapace in the female. Other diagnostic characters useful in differentiating the new species from the aforementioned close relatives are also discussed. Genetic analyses using sequences of two mitochondrial markers, including cytochrome c oxidase subunit I (COI) and 16S rRNA, are also presented to provide preliminary support for the status of the new species. Lebbeus parvirostris sp. nov. is the second representative of Lebbeus known from active hydrothermal vents in the Ryukyu region. Crustacea, COI, deep sea, genetic analyses, Lebbeus parvirostris, 16S rRNA
Lebbeus parvirostris sp. nov. Etymology. From the combination of the Latin “parvus” (= small, short) and “rostris” (= front), in reference to the short rostrum in the new species. Used as a noun in apposition. Tomoyuki KOMAI and Chong CHEN. 2024. A New Species of the thorid shrimp Genus Lebbeus White, 1847 (Decapoda: Caridea) from the Amami Rift hydrothermal vent field in the Ryukyu region, Japan. Zootaxa. 5523(2); 254-268. DOI: doi.org/10.11646/zootaxa.5523.2.7 | ||||||
| 9:39a | [Herpetology • 2025] Cyrtodactylus nangunhe • A New Species of Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) from Yunnan Nangunhe National Nature Reserve, China
Abstract A new forest-dwelling species of the Cyrtodactylus chauquangensis group is described from southwestern Yunnan Province, China. Phylogenetically, it was recovered as the sister species of C. zhenkangensis, with a genetic distance of 9.2% in the ND2 gene. Morphologically, the new species can be separated from C. zhenkangensis by the discontinuity of enlarged femoral scales and enlarged precloacal scales, the absence of femoral pores, and the difference in dorsal color pattern. In addition, although the new species and C. zhenkangensis are distributed relatively close, their habitats are clearly different. Cyrtodactylus zhenkangensis inhabits karst limestone, while the new species inhabits forest. The new species is the 29th species of the C. chauquangensis group and the third forest-dwelling species of this group. Key words: Bent-toed gecko, Cangyuan, Cyrtodactylus chauquangensis group, mitochondrial DNA, systematics, taxonomy
Cyrtodactylus nangunhe sp. nov. Diagnosis: Body size relatively large (SVL 89.5–97.0 mm); tail long (TaL/SVL 1.07–1.14); head relatively long (HL/SVL 0.27–0.28), moderately widened (HW/HL 0.67–0.68); snout long (SE/HL 0.40); body slender (AG/SVL 0.43–0.44); 16–18 longitudinal rows of dorsal tubercles at midbody, 25–27 paravertebral tubercles; ventrolateral fold distinct, interspersed with tubercles; 29–31 longitudinal ventral scale rows at midbody; eight precloacal pores separated ... Etymology: The specific epithet nangunhe is a noun in apposition, and therefore invariable; it refers to Yunnan Nangunhe National Nature Reserve, where the new species was found. Shuo Liu, Zhimin Li, Wenguang Duan, Mian Hou and Dingqi Rao. 2025. A New Species of Cyrtodactylus Gray, 1827 (Squamata, Gekkonidae) from Yunnan Nangunhe National Nature Reserve, China. ZooKeys. 1223: 69-86. DOI: doi.org/10.3897/zookeys.1223.137184 |
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