Nishikawa Kanto, Khonsue Wichase, Pomchote Porrawee, Matsui Masafumi
Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan; Email:
Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Email:
Zootaxa. 2013 Nov 20;3737:261-79. doi: 10.11646/zootaxa.3737.3.5.
Three morphological groups are found in a salamandrid newt Tylototriton shanjing from Thailand. We describe two of them as new species, one from northern and the other from northeastern Thailand, based on molecular and morphological data, however we could not make a taxonomic decision on the remaining one group because of the lack of voucher specimens and sufficient genetic data. The northern species differs morphologically from all known congeners by having the combination of orange to reddish brown markings, narrow and sharply protruding dorsolateral bony ridges on head, weakly segmented vertebral ridge, and long and high tail. The northeastern species is characterized by having the combination of yellow, orange, or reddish brown markings, wide and moderately protruding dorsolateral bony ridges on head, smooth vertebral ridge, black limbs, and black tail except for edges. Validity of taxonomic subdivision of the genus Tylototriton is discussed.
在来自泰国的一种蝾螈（山溪鲵属）——山溪鲵中发现了三个形态类群。基于分子和形态学数据，我们将其中两个类群描述为新物种，一个来自泰国北部，另一个来自泰国东北部。然而，由于缺乏凭证标本和足够的遗传数据，我们无法对其余一个类群做出分类学决定。北部的物种在形态上与所有已知同属物种不同，其特征在于具有橙色至红棕色斑纹、头部狭窄且尖锐突出的背外侧骨嵴、微弱分节的脊椎嵴以及长而高的尾巴。东北部的物种特征在于具有黄色、橙色或红棕色斑纹、头部宽阔且适度突出的背外侧骨嵴、光滑的脊椎嵴、黑色的四肢以及除边缘外黑色的尾巴。讨论了山溪鲵属分类细分的有效性。
