A New Spotted Species of the Cyrtodactylus (Geckoella) collegalensis (Beddome, 1870) (Reptilia: Squamata) Complex from Coastal Kerala, Southwestern India

IF 1.1 4区生物学 Q3 ZOOLOGY

Journal of Herpetology Pub Date : 2023-03-28 DOI:10.1670/21-075

Ishan Agarwal, P. Umesh, Sandeep Das, A. Bauer, Akshay Khandekar

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引用次数: 2

Abstract

Abstract. We describe a new spotted species of ground-dwelling gecko of the genus Cyrtodactylus (Geckoella) from coastal Kerala, southwestern India, by using an integrative taxonomic approach. The new species is a member of the C. collegalensis species complex, with 10.0–13.5% uncorrected mitochondrial sequence divergence from the other six members of the C. collegalensis complex. The new species is also recognized in tree-based delimitation methods and can be morphologically diagnosed by a spotted dorsal pattern of four to six pairs of spots (occasionally fused into figure 8–shaped markings) from the banded species C. speciosus, C. rishivalleyensis, and C. yakhuna and from the spotted C. collegalensis, C. srilekhae, and C. varadgirii by the presence of a few scattered enlarged dorsal scales. This is the only Indian member of the C. collegalensis complex with a relatively broad distribution at low elevations, other than C. varadgirii from western India (distributed in Maharashtra, southern Gujarat, and western Madhya Pradesh). The sister species to the new species is the Sri Lankan C. yakhuna, which is a banded form from low elevations. The new species is the second gecko to have been described from Chengodumala and endemic to northern and central Kerala, highlighting the importance of this area, which is under increasing anthropogenic pressure. We also provide notes on the dorsal pholidosis of C. rishivalleyensis, which was overlooked in its original description.

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印度西南部喀拉拉邦海岸的collegalensis Cyrtodactylus（Geckoella）一新种（Beddome，1870）（爬行纲：Squamata）复合体

摘要本文采用综合分类方法，描述了一种来自印度西南部喀拉拉邦沿海地区的陆生壁虎(壁虎属)。该新种是C. collealensis物种复合体的成员，与C. collealensis复合体的其他6个成员存在10.0-13.5%未校正的线粒体序列差异。该新种也在基于树的划分方法中被识别出来，并且可以通过带状物种C. speciosus, C. rishivalleyensis和C. yakhuna的4至6对斑点的背部模式(偶尔融合成8形标记)和斑点物种C. collealensis, C. srilekhae和C. varadgirii的一些分散的扩大的背部鳞片来形态学诊断。除了印度西部的C. varadgirii(分布在马哈拉施特拉邦、古吉拉特邦南部和中央邦西部)外，这是C. collalensis复合体中唯一在低海拔地区分布相对广泛的印度成员。新物种的姐妹种是斯里兰卡的C. yakhuna，这是一种来自低海拔地区的带状物种。这一新物种是在成戈杜马拉发现的第二种壁虎，是喀拉拉邦北部和中部的特有物种，突显了该地区的重要性，该地区正面临越来越大的人为压力。我们还提供了C. rishivalleyensis的背侧磷脂沉积的注释，这在其原始描述中被忽略了。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Herpetology 生物-动物学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The Journal of Herpetology accepts manuscripts on all aspects on the biology of amphibians and reptiles including their behavior, conservation, ecology, morphology, physiology, and systematics, as well as herpetological education. We encourage authors to submit manuscripts that are data-driven and rigorous tests of hypotheses, or provide thorough descriptions of novel taxa (living or fossil). Topics may address theoretical issues in a thoughtful, quantitative way. Reviews and policy papers that provide new insight on the herpetological sciences are also welcome, but they must be more than simple literature reviews. These papers must have a central focus that propose a new argument for understanding a concept or a new approach for answering a question or solving a problem. Focus sections that combine papers on related topics are normally determined by the Editors. Publication in the Long-Term Perspectives section is by invitation only. Papers on captive breeding, new techniques or sampling methods, anecdotal or isolated natural history observations, geographic range extensions, and essays should be submitted to our sister journal, Herpetological Review.