Khandekar Akshay, Thackeray Tejas, Agarwal Ishan
Thackeray Wildlife Foundation; Mumbai; 400051; India; Department of Zoology; Shivaji University; Kolhapur; 416004; India.
Thackeray Wildlife Foundation; Mumbai; 400051; India.
Zootaxa. 2024 Apr 23;5443(3):353-386. doi: 10.11646/zootaxa.5443.3.3.
We describe two new medium-bodied, nocturnal species of South Asian Cnemaspis from the southern Western Ghats, Tamil Nadu, India in an integrative taxonomic framework. The two new species are phylogenetically and morphologically allied to the wynadensis clade and can be distinguished from other species of the wynadensis clade and each other by a combination of nonoverlapping morphological characters including body size, homogeneous dorsal pholidosis, the number of femoral pores and poreless scales separating these series, the number of ventral scales across the midbody and longitudinal scales from mental to cloaca, the number of dorsal granules around the body; and an uncorrected pairwise ND2 sequence divergence of 8.2-22.9 % (16S 4.2-12.2 %) from all other members in the clade. These are the first members of the wynadensis clade known from south of the Palghat Gap apart from C. bireticulata, a putative junior synonym of C. sisparensis that is likely to be distinct owing to morphological differences and geographic distance. Cnemaspis sanctus sp. nov. is from low coastal hills in Kanyakumari District at the southern tip of the Western Ghats and Cnemaspis persephone sp. nov. is from the Anaimalais, Anaimalai Tiger Reserve. Many more undescribed species of the wynadensis clade and South Asian Cnemaspis are likely to be found across the southern Western Ghats.
我们在一个综合分类框架下描述了来自印度泰米尔纳德邦西高止山脉南部的两种新的中等体型、夜行性的南亚锯鳞蜥属物种。这两个新物种在系统发育和形态上与温纳德锯鳞蜥分支相关联,并且可以通过一系列不重叠的形态特征组合与温纳德锯鳞蜥分支的其他物种以及彼此区分开来,这些特征包括体型大小、背部鳞片均匀、股孔数量以及分隔这些系列的无孔鳞片数量、身体中部的腹侧鳞片数量以及从颏部到泄殖腔的纵向鳞片数量、身体周围的背部颗粒数量;并且与该分支中的所有其他成员的未校正成对ND2序列分歧为8.2 - 22.9%(16S为4.2 - 12.2%)。除了双网锯鳞蜥(Cnemaspis bireticulata)外,这些是已知的来自帕尔加特山口以南的温纳德锯鳞蜥分支的首批成员,双网锯鳞蜥可能是西氏锯鳞蜥(Cnemaspis sisparensis)的一个推定次异名,由于形态差异和地理距离,它可能是不同的物种。圣锯鳞蜥(Cnemaspis sanctus sp. nov.)来自西高止山脉南端卡尼亚库马里区的低沿海山丘,珀耳塞福涅锯鳞蜥(Cnemaspis persephone sp. nov.)来自阿奈马莱山脉、阿奈马莱老虎保护区。在整个西高止山脉南部可能还会发现更多未描述的温纳德锯鳞蜥分支和南亚锯鳞蜥属物种。