Morphological Characteristics of the Dorsal Skin of Two Hynobiids and Their Adaptive Role in Aquatic and Terrestrial Habitats  

作　　者：Jianli XIONG Chongshan DAI Mengyun LI Wen DENG Jichang LI 

机构地区：[1]Animal Science and Technology College,Henan University of Science and Technology [2]College of Animal Medicine,Northeast Agriculture University

出　　处：《Asian Herpetological Research》2013年第1期62-67,共6页亚洲两栖爬行动物研究（英文版）

基　　金：supported by the grants of the National Natural Science Foundation of China(30900138);the Henan University of Science and Technology Foundation(09001367);the Science and Technology Program of Henan Province(122102110035)to Jianli XIONG

摘　　要：The morphological characteristics of the dorsal skin of trunk in two species of hynobiid salamanders, Batrachuperus pinchonii and Hynobius chinensis were examined by light microscopy. The basic structures of the skin in the two species are similar and consist of two layers： epidermis and dermis. The epidermis consists of stratum corneum, stratum intermedium and stratum germinativum, while the dermis is composed of a stratum spongiosum and stratum compactum. However, some species-specific variation has been identified （e.g., the distribution of capillary vessels and gland cells, and the thickness of skin）. H. chinensis is a terrestrial species and only lives in water during breeding period, but B. pinchonii is aquatic and remains aquatic throughout its lifetime. The differences in the distribution of capillary vessels and gland cells are related to their different habitats, and show a morphological adaptation.The morphological characteristics of the dorsal skin of trunk in two species of hynobiid salamanders, Batrachuperus pinchonii and Hynobius chinensis were examined by light microscopy. The basic structures of the skin in the two species are similar and consist of two layers： epidermis and dermis. The epidermis consists of stratum corneum, stratum intermedium and stratum germinativum, while the dermis is composed of a stratum spongiosum and stratum compactum. However, some species-specific variation has been identified （e.g., the distribution of capillary vessels and gland cells, and the thickness of skin）. H. chinensis is a terrestrial species and only lives in water during breeding period, but B. pinchonii is aquatic and remains aquatic throughout its lifetime. The differences in the distribution of capillary vessels and gland cells are related to their different habitats, and show a morphological adaptation.

关 键 词：hynobiid salamander SKIN morphology ADAPTATION HABITAT 

分 类 号：Q958[生物学—动物学]