石龙子观星:婆罗洲Sphenomorphus stellatus复群的现状和分类(Boulenger, 1900),并描述了一个新种(鳞目:棘科)。

IF 0.8 4区 生物学 Q3 ZOOLOGY
Zootaxa Pub Date : 2025-03-20 DOI:10.11646/zootaxa.5609.2.3
Evan S H Quah, L Lee Grismer
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引用次数: 0

摘要

Sphenomorphus stellatus曾经被认为是一个广泛分布的物种,分布在印度支那,泰国-马来半岛和婆罗洲的许多地方。然而,最近对该物种的综合分类研究揭示了其被低估的多样性,并在东南亚大陆发现了以前伪装在该名称下的新物种。这促使了对婆罗洲的S. stellatus标本的重新检查,形态学分析显示它与马来西亚半岛的物种或其他同系物的物种标本不相同,因此在这里被描述为新物种。利用已知的成虫SVL为57.4 mm的组合,可以将条纹蝶与同属植物区分开来;额鳞未分割;前额叶广泛接触;四个supraoculars;两个法国欧莱雅;八眉部;下眼睑无增大、清晰的中心窗;七、八篇超文本;6 infralabials;三副帽舌;24中体刻度行;62根旁椎骨,不比其它背宽;66年腹;二增大的前泄殖腔;在第四趾上有19个近指片;下巴和喉咙上有明显的条纹。S. striatafaucium sp. 11 .的发现使婆罗洲特有的Sphenomorphus石龙子的数量增加到13种。这一发现强调了婆罗洲爬行动物和两栖动物物种的多样性被低估的问题,需要更加协调一致地进行实地调查和系统研究,不仅要提高对它们的关系和生态的理解,还要更好地保护它们日益受到人为压力威胁的栖息地。这项研究还强调了博物馆中精心策划的自然历史收藏品的价值,这些收藏仍然藏有等待发现的新物种。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Skink stargazing: On the status and taxonomy of the Sphenomorphus stellatus complex (Boulenger, 1900) in Borneo, with the description of a new species (Squamata: Scincidae).

Sphenomorphus stellatus was once thought to be a wide-ranging species distributed across many parts of Indochina, the Thai-Malay Peninsula and Borneo. However, recent integrative taxonomic studies on the species have revealed its underestimated diversity and new species previously masquerading under this nomen in mainland Southeast Asia. This prompted the re-examination of a specimen identified as S. stellatus from Borneo, and morphological analyses revealed that it is not conspecific with topotypic specimens of the species from Peninsular Malaysia or other congeners of the complex, and is therefore described herein as new. Sphenomorphus striatafaucium sp. nov. can be differentiated from its congeners by a combination of known adult SVL of 57.4 mm; frontal scale undivided; prefrontals in broad contact; four supraoculars; two loreals; eight superciliaries; no enlarged, clear, central window in lower eyelid; seven or eight supralabials; six infralabials; three pairs of chinshields; 24 midbody scale rows; 62 paravertebrals, not wider than other dorsals; 66 ventrals; two enlarged precloacals; 19 subdigital lamellae on fourth toe; and bold and distinct striped pattern on the chin and throat. The discovery of S. striatafaucium sp. nov. increases the number of endemic Sphenomorphus skinks in Borneo to 13 species. The discovery underscores the underestimated diversity of reptile and amphibian species in Borneo, and the need for more concerted efforts to conduct fieldwork and systematic studies to not only improve the understanding of their relationships and ecologies, but also better protect their habitats that are increasingly threatened by anthropogenic pressures. This study also highlights the value of well-curated natural history collections in museums that still harbour new species awaiting discovery.

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来源期刊
Zootaxa
Zootaxa 生物-动物学
CiteScore
1.90
自引率
33.30%
发文量
1895
审稿时长
2.7 months
期刊介绍: Zootaxa is a peer-reviewed international journal for rapid publication of high quality papers on any aspect of systematic zoology, with a preference for large taxonomic works such as monographs and revisions. Zootaxa considers papers on all animal taxa, both living and fossil, and especially encourages descriptions of new taxa. All types of taxonomic papers are considered, including theories and methods of systematics and phylogeny, taxonomic monographs, revisions and reviews, catalogues/checklists, biographies and bibliographies, identification guides, analysis of characters, phylogenetic relationships and zoogeographical patterns of distribution, descriptions of taxa, and nomenclature. Open access publishing option is strongly encouraged for authors with research grants and other funds. For those without grants/funds, all accepted manuscripts will be published but access is secured for subscribers only.
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