我国小鲵科一新属新种的描述

1959年至1981年,在大别山、桐柏山、伏牛山及太行山等地区调查,发现小鲵科一种,外部形态和头骨特征与已知小鲵科各属均有明显区别。现将商城标本与相近的小鲵属和北鲵属的主要特征对比如表1（图1—3）。 从表1可以看出,商城标本与相近的小鲵属和北鲵属都有显著区别,应为一个新属新种。模式标本保存在新乡师范学院。现描述如下:

DESCRIPTION OF A NEW GENUS AND SPECIES OF HYNOBIIDAE OF CHINA

Herpetological surveys were made from 1959 to 1981 in the Dabie, Tong-bai, Funiu, and Taihang Mountains in Henan Province, and a new genus and species was discovered. Pachyhynobius gen. nov. (Figs. 3 , 4 ) Diagnosis: This genus is characterized by, 1) the anterior part of the skull narrower than the posterior, with the distance between the posterior tips of the maxillae much shorter than between the outer borders of the quadrates; 2) maxilla connected with pterygoid; 3 ) the inner side of the squamosum much protruded. 4 ) vomerine teeth series " "-shaped; 5 ) premaxillary fontanelle absent; 6 ) lachrymal bone entering the orbit but not external narcs; 7) body rather stout, tail shorter than head-body, and limbs rather short and weak; 8) labial folds present. 9) fingers 4 and toes 5. Type species. Pachyhynobius shangchengensis sp. nov. Pachyhynobius shangchengensis sp. nov. Holotype: No. 00227, adult male, Huangbaishan, Shangcheng County, Henan, altitude 780m, collected on May 13, 1981 by Qu Wenyuan. Allotype: No. 00223, adult female, collected with the holotype. Paratypes: 7 , 9 , and 13 larvae, collected in August, 1959 and May 1981 from Shangcheng, altitude 380-780m. Type specimens arc kept in the Department of Biology, Xinxiang Normal College, Henan.