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Tuesday, October 29th, 2024
Time |
Event |
12:05a |
[Herpetology • 2024] Pseudogonatodes fuscofortunatus • Morphology and Molecular Systematics support A New Species of Pseudogonatodes (Gekkota: Sphaerodactylidae) from Venezuela with a remarkable telescoped skull
 | Pseudogonatodes fuscofortunatus
Schargel, Hernández-Morales, Daza, Jowers, Montes-Correa, Freitas, Sullivan, Gamble & Rivas. 2024
Photograph by Luis A. Rodríguez J. |
Abstract We describe a new species of miniaturized gecko (genus Pseudogonatodes) from the Peninsula de Paria in northeastern Venezuela. Externally, the new species resembles Pseudogonatodes furvus and Pseudogonatodes manessi, from the Sierra Nevada de Santa Marta in Colombia and the Central Coastal Range in Venezuela, respectively; however, it differs from these species in terms of molecular genetic data (12S rRNA, 16S rRNA, and c-mos), osteological characters, and scale counts. The new species is unique in skull osteology, and we adopt the term ‘telescoped’ from the literature to describe the overlap of bones in the snout, in particular the premaxilla fully separating the nasal bones and contacting the frontal bone. The new species is also the only known species of Pseudogonatodes with fused parietal bones. Using molecular data, we present the first phylogeny of Pseudogonatodes, including six of the nine species in the genus. The new species is sister to P. manessi, which is consistent with biogeographical patterns in the mountainous areas of northern Venezuela. The phylogenetic results also indicate that Pseudogonatodes guianensis is non-monophyletic and raise the possibility of resurrecting the name Pseudogonatodes amazonicus. However, large sampling gaps in Amazonia prevent us from rigorously assessing species limits and proposing a taxonomic change.
gecko, micro-computed tomography scan, montane forests, Peninsula de Paria, reptile, skeleton, sphaerodactyl, taxonomy


  | Telescoped patern of the skull of Pseudogonatodes fuscofortunatus (MBLUZ 1292, top), compared with Pseudogonatodes manessi (KU 182740, botom). Arrows indicate the facets that support each dorsal bone.
Colours are as follows: purple, premaxilla; cobalt blue, nasal; light blue, frontal; green, parieta |
 | Specimens of Pseudogonatodes from northern South America in life. A, Pseudogonatodes fuscofortunatus female (presumably) paratype (MBLUZ 1293), Cerro El Olvido, Venezuela. B, Pseudogonatodes manessi, female, Rancho Grande, Parque Nacional Henri Pitier, Venezuela (MHNLS 17984). C, Pseudogonatodes furvus, male topotype, Sierra Nevada de Santa Marta, Colombia (CBUMAG:REP:00767). D, Pseudogonatodes manessi, young specimen, from La Cumbre, Municipio Bruzual, Sierra de Aroa, Venezuela; this individual would represent the westernmost limit of the species. E, view of Cerro Azul from Cerro El Olvido, two of the highest mountains with humid forests at the eastern end of the Paria Peninsula, Venezuela. F, undergrowth with abundant decomposing organic mater and rocks, an environment where P. fuscofortunatus lives.
Photographs: Luis A. Rodríguez J. (A), Eric N. Smith (B), Andrés C. Montes-Correa (C), Alberto Navas and Edward Camargo (D), and Gilson Rivas (E, F) |
Walter E. Schargel, Cristian Hernández-Morales, Juan D. Daza, Michael J. Jowers, Andrés Camilo Montes-Correa, Mayke De Freitas, Kathryn A. Sullivan, Tony Gamble, Aaron M. Bauer and Gilson A. Rivas. 2024. Morphology and Molecular Systematics support A New Species of Pseudogonatodes (Squamata: Gekkota: Sphaerodactylidae) from Venezuela with a remarkable telescoped skull. Zoological Journal of the Linnean Society. 202(2); zlae120. DOI: doi.org/10.1093/zoolinnean/zlae120
| 12:13a |
[Mammalogy • 2024] Murina yushuensis • A New Dpecies of Tube-nosed Bat (Chiroptera: Vespertilionidae: Murina) from Qinghai–Tibet Plateau, China  | Murina yushuensis Han, Csorba & Wu,
in Wang, Han, Csorba, Wu, Chen, Zhao, Dong, Yu et Lu, 2024. |
Abstract In 2018, an adult male of a small-sized Tube-nosed Bat (Chiroptera: Vespertilionidae: Murina) was captured at an arid cave located on the Qinghai–Tibet Plateau in Yushu City, Qinghai Province, China. Despite external morphological similarities with those of M. harpioloides and M. chrysochaetes, the individual in question displays explicit craniodental differences that distinguish it from either species. Morphological and morphometric evidence, coupled with phylogenetic analyses utilizing the mitochondrial COI gene, confirmed that it represents a distinct and still unknown species of Murina, described herewith as M. yushuensis sp. nov. Our research highlights the importance of future surveys aimed at exploring cryptic species diversity in the Qinghai–Tibet Plateau and adjacent under-surveyed regions.
morphometrics, Murininae, phylogeny, systematics, taxonomy
 | Skull and dentition of Murina yushuensis sp. nov. (Holotype, GZHU 20077). (A) Lateral view of skull and mandible. (B) Dorsal view of skull. (C) Ventral view of skull with details of the upper toothrow. (D) Occlusal view of mandible with details of the lower toothrow. |
 | External features and habitat of Murina yushuensis sp. nov. (Holotype, GZHU 20077). (A) Live individual. (B) Dorsal, and (C) ventral aspect of the body. (D) Surrounding environment of the cave in July, and (E) in March. (F) Type specimen hibernating in the cave.
Photos by Xuesong Han, Yi Wu, and Wenhua Yu. |
Xiaoyun Wang, Xuesong Han, Gábor Csorba, Yi Wu, Huaiqing Chen, Xiang Zhao, Zhengyi Dong, Wenhua Yu and Zhi Lu. 2024. A New Dpecies of Tube-nosed Bat (Chiroptera: Vespertilionidae: Murina) from Qinghai–Tibet Plateau, China. Journal of Mammalogy. gyae104. DOI: doi.org/10.1093/jmammal/gyae104
本研究于2018年在中国青海玉树1个河流旁的干燥洞穴中捕获1只雄性小型管鼻蝠(翼手目Chiroptera:蝙蝠科Vespertilionidae:管鼻蝠属Murina)。其主要特征为,前臂长31.34 mm,颅全长14.14 mm;耳小而圆,无缺刻;背毛呈现基部黑色,顶端为棕金色;腹毛基部较长,呈深黑色,顶部呈灰白色。基于形态学证据和COI构建的系统发育树,本研究将其鉴定为管鼻蝠属的新物种,命名为玉树管鼻蝠(Murina yushuensis sp. nov. Han, Csorba et Wu, 2024)。该发现不仅丰富了翼手目物种多样性,还说明了在青藏高原及周边区域等特殊生境开展翼手目调查的重要性。 || 形态度量学, 管鼻蝠亚科, 系统发育关系, 系统学, 分类学 | 1:53p |
[Mollusca • 2020] Diplommatina fusiformis, D. burapha, ... • A Review of Diplommatina Species (Gastropoda: Diplommatinidae) in eastern Thailand with the Descriptions of Five New Species
 | [A] Diplommatina fusiformis spec. nov. หอยกระสวยจิ๋ว, [B-E] D. khwantongae spec. nov. หอยกระสวยจิ๋วคณิตา, D. crispata khaochamaoensis Panha et al., 1998, หอยกระสวยจิ๋วบูรพา D. burapha sp. n., หอยกระสวยจิ๋วชฎาทอง D. chadathongae Kamtuptim, Dumrongrojwattana & Wongkamhaeng sp. nov. หอยกระสวยจิ๋วจันทบุรี D. chantaburiensis sp. n.
in Dumrongrojwattana, Kamtuptim & Wongkamhaeng, 2020 |
Abstract Background: Microsnails in the genus Diplommatina Benson, 1849 from eastern Thailand are revised, based on the collection of the Zoological Research Collection, Burapha University, Chonburi Province, Thailand and on recently-collected materials.
New information: Five new species, Diplommatina burapha sp. n., D. chadathongae sp. n., D. chantaburiensis sp. n., D. fusiformis sp. n. and D. khwantongae sp. n., are described as new to science. The geographic distribution of these eastern species is presented.
Keywords: Diplommatina, Diplommatinidae, taxonomy, Thailand
 | Four Diplommatina species from eastern Thailand. A) Diplommatina crispata khaochamaoensis Panha et al., 1998, B) D. burapha sp. n., C) D. chadathongae sp. nov. and D) D. chantaburiensis sp. n.
Each species shows a frontal view, lateral view, dorsal view and the number of ribs per 0.5 mm on the penultimate whorl and body whorl, respectively. |
 | Two Diplommatina species from eastern Thailand. A) D. fusiformis spec. nov., B-E) D. khwantongae spec. nov., B) Holotype, C-D) Living snail. (Photos by Ms. Rattanawadee Tekavong). Each species shows a frontal view, lateral view, dorsal view and the number of ribs per 0.5 mm on the penultimate whorl and body whorl, respectively. |
Pongrat Dumrongrojwattana, Chanakarn Kamtuptim and Koraon Wongkamhaeng. 2020. A Review of Diplommatina Species in eastern Thailand with the Descriptions of Five New Species. Biodiversity Data Journal. 8: e57689. DOI: 10.3897/BDJ.8.e57689
สด ๆ ร้อน ๆ หอยกระสวยจิ๋วชนิดใหม่ของโลก 5 ชนิด จากภาคตะวันออก ได้แก่ 1. หอยกระสวยจิ๋วบูรพา (Diplommatina burapha Dumrongrojwattana, Kamtuptim & Wongkamhaeng, 2020) จากจังหวัดสระแก้ว ตั้งตามภูมิภาคที่พบ คือ ภาคตะวันออกและสอดคล้องกับชื่อมหาวิทยาลัย "บูรพา" 2. หอยกระสวยจิ๋วชฎาทอง (Diplommatina chadathongae Kamtuptim et al., 2020 in Dumrongrojwattana et al., 2020) หอยชนิดนี้ตั้งชื่อเพื่อเป็นเกียรติและระลึกถึงคุณแม่ของนางสาวชนากานต์ ขำทับทิม นิสิตชั้นปีที่ 4 ภาควิชาชีววิทยา หนึ่งในผู้ร่วมงานวิจัยชิ้นนี้ 3. หอยกระสวยจิ๋วจันทบุรี (Diplommatina chantaburiensis Dumrongrojwattana et al., 2020) ตั้งชื่อตามจังหวัดจันทบุรี ที่ซึ่งพบหอยกระสวยจิ๋วชนิดนี้เป็นครั้งแรก 4. หอยกระสวยจิ๋ว (Diplommatina fusiformis Dumrongrojwattana et al., 2020) ตั้งชื่อตามรูปทรงเปลือกหอยที่เป็นทรงกระสวย 5. หอยกระสวยจิ๋วคณิตา (Diplommatina khwantongae Dumrongrojwattana et al., 2020) ตั้งชื่อให้เป็นเกียรติและแสดงความระลึกถึง นางสาวคณิตา ขวานทอง หรือ พะลอย ของอาจารย์และเพื่อน ๆ ร่วมรุ่น นิสิตผู้ทำการศึกษาและค้นพบหอยกระสวยจิ๋วชนิดนี้ ผู้จากไปก่อนวัยอันควร ผลการศึกษาครั้งนี้ ทำให้จำนวนชนิดของหอยกระสวยจิ๋วในภาคตะวันออก เพิ่มขึ้นจากเดิมที่รายงานไว้เพียง 1 ชนิด คือ หอยกระสวยจิ๋วเขาชะเมา (Diplommatina crispata khaochamaoensis) เพิ่มขึ้นเป็น 6 ชนิด
| 2:06p |
[Mammalogy • 2024] Callosciurus concolor & Tamiops barbei • Lost in Synonymy: Integrative Species Delimitation reveals Two unrecognized Species of Southern Asian Tree Squirrels (Rodentia: Sciuridae: Callosciurinae) _2024-Hinckley_Maldonado_.jpg) | the skins of (A) Callosciurus caniceps (NHMUK 41.1817, lectotype); live images of (B) C. caniceps caniceps taken by Natthaphat Chotjuckdikul (Te’) in Bangkok, Thailand; (C) C. caniceps bimaculatus taken by Pattaraporn Vangtal in Railay Bay Beach, Krabi, Thailand; and (D) C. concolor taken by Cheong Weng Chun in Fraser’s Hill, Pahang, Malaysia.
in Hinckley, Maldonado, Tamura, Leonard & Hawkins, 2024. |
Abstract We present a comprehensive integrative taxonomic review of Callosciurus caniceps and Tamiops mcclellandii as they are currently defined. This review combines published molecular evidence, craniodental morphometrics, pelage and bacular variation, evaluations of potential hybrid zones using museum specimens and citizen science photographs, and, for C. caniceps, bioacoustic evidence. Our findings lead to the recognition of two species that had been lost in synonymy and highlight future perspectives on species delimitation in Sciuridae. By comparing phenotypic differentiation across climatic and vegetation transitions and contextualizing our results with the evolutionary history of our study systems, we provide insights into distribution, ecogeographical patterns, and speciation drivers in Southeast Asian vertebrates.
Keywords: Baculum, bioacoustics, biodiversity, citizen science, Mammalia, morphometrics, Southeast Asia, speciation, taxonomy
Taxonomic revision: Based on our findings, which unite molecular phylogenetic (Hinckley et al. 2023a), morphological evidence described below and in previous studies (Pocock 1923; Moore and Tate 1965; Hayashida et al. 2006), and bioacoustic data (in C. caniceps sensu lato), we conclude that the populations of Callosciurus caniceps sensu lato inhabiting Sundaland, and Tamiops mcclellandii sensu lato populations to the east of the Himalayas and Arakan range, should be recognized as distinct species. We revalidate the specific status of Callosciurus concolor (Blyth, 1855) and Tamiops barbei (Blyth, 1847), as these names represent the earliest descriptions of these separately evolving lineages. Additionally, we provide emended diagnoses and detailed species comparisons for both taxa and their sister species.
_2024-Hinckley_Maldonado_.jpg)
_2024-Hinckley_Maldonado_.jpg) | Dorsal and ventral views of the skins of (A) Callosciurus caniceps (NHMUK 41.1817, lectotype); live images of (B) C. caniceps caniceps taken by Natthaphat Chotjuckdikul (Te’) in Bangkok, Thailand; (C) C. caniceps bimaculatus taken by Pattaraporn Vangtal in Railay Bay Beach, Krabi, Thailand; and (D) C. concolor taken by Cheong Weng Chun in Fraser’s Hill, Pahang, Malaysia. |
Callosciurus caniceps (Gray, 1842) Common name: Northern gray-bellied squirrel กระรอกปลายหางดำเหนือ
Callosciurus concolor (Blyth, 1855) Common name: Southern gray-bellied squirrel กระรอกปลายหางดำใต้
Tamiops mcclellandii (Horsfield, 1839) Common name. Himalayan striped squirrel กระเล็นขนปลายหูสั้น
Tamiops barbei (Blyth, 1847) Common name. Southeast Asian striped squirrel กระเล็น
Arlo Hinckley, Jesús E. Maldonado, Noriko Tamura, Jennifer A. Leonard and Melissa T. R. Hawkins. 2024. Lost in Synonymy: Integrative Species Delimitation reveals Two unrecognized Species of Southern Asian Tree Squirrels (Rodentia: Sciuridae: Callosciurinae). Vertebrate Zoology. 74: 683-707. DOI: doi.org/10.3897/vz.74.e133467
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