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对太白山溪鲵模式产地进行考察,于陕西周至县厚畛子镇和板房子乡共采得标本28尾。基于28号标本的形态学研究,对太白山溪鲵的形态性状进行测量比较。结果表明,太白山溪鲵头长/头宽≥1.2,头体长/尾长≥1.1,头体长/头长≥4.0。雌雄成体各性状间差异不显著(p>0.05),但头长>头宽,头体长>尾长,鼻间距>吻长>眼间距>眼径,后肢长>前肢长,尾高>尾宽。体重与全长(包括其他共线性性状)、头宽呈极显著的正相关关系,吻长与体重呈显著的负相关关系,吻长与头长不相关。
The origin of the Taibai Mountain stream pattern was inspected, and 28 specimens were collected from Houzijizhen and Banfangzi townships in Zhouzhi County, Shaanxi Province. Based on the morphological study of No.28 specimens, morphological traits of Taibai mountain broodstock were measured and compared. The results showed that the head length / head width of Taibai Mountain broodstock was ≥1.2, the head length / tail length ≥1.1, and the head length / head length ≥4.0. There was no significant difference between male and female adult traits (p> 0.05), but head length> head width> head length> nose length> nose length> eye length> eye diameter and hind limb length> forelimb length and tail height> tail width . There was a significant positive correlation between body weight and total length (including other common linear traits) and head width. There was a significant negative correlation between length and body weight. There was no correlation between length and head length.