Jianli XIONG,Xiuying LIU and Xiaomei ZHANG.Comparison of Skull Morphology in Two Species of Genus Liua (Amphibia: Urodela: Hynobiidae), L. shihi and L. tsinpaensis[J].Asian Herpetological Research(AHR),2016,7(2):112-121.[doi:10.16373/j.cnki.ahr.150055]
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Comparison of Skull Morphology in Two Species of Genus Liua (Amphibia: Urodela: Hynobiidae), L. shihi and L. tsinpaensis
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

Issue:
2016 VoI.7 No.2
Page:
112-121
Research Field:
Publishing date:
2016-06-25

Info

Title:
Comparison of Skull Morphology in Two Species of Genus Liua (Amphibia: Urodela: Hynobiidae), L. shihi and L. tsinpaensis
Author(s):
Jianli XIONG1 2 * Xiuying LIU3 and Xiaomei ZHANG3
1 Animal Science and Technology College, Henan University of Science and Technology, Luoyang, Henan, PR China
2 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, School of Life Sciences, Sichuan University, Chengdu, Sichuan, PR China
3 School of Agriculture, Henan University of Science and Technology, Luoyang 471003, Henan, China
Keywords:
Liua shihi Liua tsinpaensis morphology adaptation systematics
PACS:
-
DOI:
10.16373/j.cnki.ahr.150055
Abstract:
Skull characteristics play an important role in the systematics of tailed salamanders. In this study, the skullsof Liua shihi and L. tsinpaensis were compared using a clearing and double-staining technique. The results showed thatin L. tsinpaensis, the vomerine tooth rows are in a “ ” shape, the length of the inner vomerine tooth series isnearly equal to that of the outer series, the vomerine tooth rows do not extend beyond the choanae, an ossified articularbone is absent, the basibranchial is rod shaped, the radial loops exhibit a figure-eight shape, the cornua has twocylindrical branches, the urohyal is rod shaped, and the end of the ceratohyal is not ossified; these features differconsiderably from those of L. shihi. The ossification of the posterior portion of the ceratohyal and the present or absentof ossified articular might represent ecological adaptation to feeding in different environments.

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Last Update: 2016-06-25