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Saturday, July 16th, 2022
| Time | Event | ||||||
| 8:47a | [Mammalogy • 2022] Tamiops minshanica • A New Species of Tamiops (Rodentia, Sciuridae) from Sichuan, China
Abstract During a small mammal survey in Wanglang National Natural Reserve, Sichuan, China in August–October 2018, we collected four specimens of an Asiatic striped squirrel (genus Tamiops) that could not be assigned morphologically to any described species. Phylogenetic analyses of CYTB and nuDNA sequences strongly supported them in the genus Tamiops. The p-distances of CYTB between these individuals and other species of Tamiops ranged from 17.4 to 19.1%. Morphologically, they differed from their congeners, including T. maritimus, T. mcclellandii, T. rodolphii, and T. swinhoei by pelage, skull, and baculum characteristics. Based on the results of morphological comparisons and molecular analyses, we describe the four specimens as the new species Tamiops minshanica sp. nov. Keywords: Mammalia, Asiatic striped squirrels, baculum, molecular phylogeny, morphology, morphometrics, new species, Sichuan, systematics, Tamiops, taxonomy
Shaoying Liu, Mingkun Tang, Robert W. Murphy, Yinxun Liu, Xuming Wang, Tao Wan, Rui Liao, Keyi Tang, Jiao Qing, Shunde Chen and Song Li. 2022. A New Species of Tamiops (Rodentia, Sciuridae) from Sichuan, China. Zootaxa. 5116(3); 301-333. DOI: 10.11646/zootaxa.5116.3.1 | ||||||
| 9:02a | [Ichthyology • 2022] Misgurnus amamianus • A New Species of the Genus Misgurnus (Cypriniformes: Cobitidae) from Ryukyu Islands, Japan
Abstract A new loach species, Misgurnus amamianus, is described based on 27 type specimens sampled from Ryukyu Islands, Japan. This new species can be distinguished from its congeners by the following combination of characteristics. 1) In adult males, a lamina circularis at the base of the pectoral fin is poleaxe-shaped and rounded at the back. 2) The last ray of dorsal fin is not branched, and its length is less than half the length of the second-branched soft ray. 3) The projected length from the posterior edge of the anal-fin base to the caudal-fin base is longer than the length from the insertion point of the pelvic fin to the anterior edge of the anal-fin base. 4) The ridges on the caudal peduncle at the upper and lower edges are weakly developed. The validity of this new species is also supported by the phylogenetic analysis of the mitochondrial DNA control region. Key words: Cobitoidei, weather loach, freshwater fish, DNA barcoding
 Misgurnus amamianus sp. nov. Diagnosis. The new species is distinguished from other species of Misgurnus by the combination of the follow-ing characteristics (Table 3): lamina circularis at base of pectoral fin in adult male poleaxe-shape (vs. spatula-shape in M. buphoensis and M. nikolskyi; elongated horizontally in M. dabryanus; absent in M. fossilis); neckline at base of lamina circularis shallow (vs. deep in M. anguillicaudatus); dorsal fin ray iii+6 (vs. commonly iii+7–8 in M. anguillicaudatus); last ray of dorsal fin commonly not branched (vs. commonly branched in M. anguillicaudatus, M. buohoensis, M. dabryanus, M. fossilis, M. mohoity and M. nikolskyi); L/S less than 0.5 (vs. over 0.5 in M. anguilicaudatus, M. buphoensis, M. dabryanus, M. mohoity and M. nikolskyi); LPC/DPA over 1.1 (vs. less than 1.0 in M. anguillicaudatus (China clade), M. dabryanus and M. tonkinensis); barbel length general (vs. long in M. dabryanus and M. tonkinensis); caudal-peduncle depth shallow (vs. deep in M. dabryanus, M. multimaculatus and M. tonkinensis); and total vertebrae number 44–48 (vs. over 49 in M. buphoensis, M. fossilis and M. nikolskyi). Habitat and biology. Misgurnus amamianus inhabits the muddy bottoms of small streams, paddy fields, and ponds with rich vegetation. The life cycle is unknown, but it breeds from May to August in captivity. The loach has a strong tendency to hide in vegetation. Etymology. The specific name was derived from the Amami Islands, which is the primary distribution area of this species. Japanese name is suggested as Shinobi-dojyô. Jun Nakajima and Yasuyuki Hashiguchi. 2022. A New Species of the Genus Misgurnus (Cypriniformes, Cobitidae) from Ryukyu Islands, Japan. Zootaxa. 5162(5); 525-540. DOI: 10.11646/zootaxa.5162.5.4 | ||||||
| 9:20a | [Botany • 2019] Impatiens eravikulamensis (Balsaminaceae) • A New Species of Impatiens from Eravikulam National Park, southern Western Ghats, India
ABSTRACT Impatiens eravikulamensis, a new species of Impatiens from Idukki district of Kerala, southern Western Ghats is described. Detailed descriptions, distribution and ecology along with photographs are provided. KEYWORDS: Balsams, Eravikulam National Park, Impatiens, Western Ghats
Impatiens eravikulamensis Hareesh & Salish sp.nov. Diagnosis: Impatiens eravikulamensis is similar to I. kodachadriensis but differs by having single row of pubescence on pedicel (vs two row), lateral united petals without dorsal auricle (vs with auricle), smooth lower sepal with shallow adaxial sur-face and yellow eye within (vs ribbed without yellow eyes), glabrous, pale yellow spur (vs minutely pubescent, green) and yellow pollen (vs white). Etymology: The specific epithet refers to the type locality, the ‘Eravikulam National Park’, Idukki district, Kerala. Menachery Johnson Salish, Vadakkoot Sankaran Hareesh, Lekshmi Arun, Sukesan Sandeep and Pilakandy Rajan. 2019. A New Species of Impatiens (Balsaminaceae) from Eravikulam National Park, southern Western Ghats, India. Webbia: Journal of Plant Taxonomy and Geography. 74(2); 271-274.  | ||||||
| 10:00a | [Ichthyology • 2022] Pegasus sinensis • A New Seamoth Species of Pegasus (Syngnathiformes: Pegasidae) from the East China Sea
The Pegasidae family, which includes seven species of seamoths, is widely distributed in the temperate and tropical waters of the Indo-Pacific, ranging from South Africa to Hawaii. In this study, we describe a new species of seamoth, Pegasus sinensis sp. nov., based on morphological and molecular characterization of 14 specimens collected from the surrounding waters of Xiamen City, Fujian Province, China. The new species differs from closely related P. volitans in both the density and color of spots present on the dorsal and lateral body surfaces. Based on the mitochondrial genomes (mitogenomes) of three newly sequenced pegasids used in this study, we conducted a phylogenetic analysis of Pegasidae, revealing that Pegasus sinensis sp. nov. and P. volitans diverged from their common ancestor approximately 9.0 million years ago (Ma). Two members of the pegasid genus Spinipegasus (S. laternarius and S. nanhaiensis) clustered outside the monophyletic branch of Pegasus and Eurypegasus, supporting the classification of Spinipegasus as a valid genus, as proposed in previous studies.
Pegasus sinensis sp. nov. Diagnosis: Pegasus sinensis sp. nov. can be distinguished from all known congeners based on a combination of the following characters (see Supplementary Table S2 for details, with P. volitans, P. tetrabelos, S. laternarius, and S. nanhaiensis data taken from Osterhage et al., 2016; Zhang et al., 2020): (1) tail rings 12 (I–XII) (vs. 11 in S. laternarius and S. nanhaiensis); (2) body slender, similar to P. volitans, carapace width 14.44%–18.15% of SL (vs. 28.8%–37.0% of SL in S. nanhaiensis and 24.7%–32.2% of SL in S. laternarius); (3) rostrum length 21.01%–25.53% of SL (vs. 4.8%–17.4% of SL in S. nanhaiensis and 7.5%–19.9% of SL in S. laternarius; (4) pectoral fin rays 11 (vs. 10 in P. tetrabelos); (5) tail length 60.44%–65.76% of SL (vs. 59.3%–65.2% of SL in P. tetrabelos and 45.1%–52.8% of SL in S. nanhaiensis); (6) overlaid large, dark spots (vs. smaller brown to dark brown spots in P. volitans and P. tetrabelos); and (7) dorsal plate pairs 3 (d1–3), dorsolateral plate pairs 4 (dl1–4), ventrolateral plate pairs 5 (vl1–5), caudodorsal plate pairs at tail 11, and caudoventral plate pairs 11 (Figure 1B–D). Etymology: The species name sinensis is derived from its currently known distribution in the coastal waters of China. Suggested English name: Chinese Seamoth Suggested Chinese common name: 中华海蛾鱼 (Chinese phonetic alphabet: zhōng huá hǎi é yú). Ying-Yi Zhang, Rong-Rong Zhang, Shao-Bo Ma, Shuai-Shuai Liu, Qiang Lin and Xin Wang. 2022. A New Seamoth Species of Pegasus (Syngnathiformes: Pegasidae) from the East China Sea. Zoological Research. 43(4); 675-678. DOI: 10.24272/j.issn.2095-8137.2022.109 |
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