Meihua ZHANG,Xiaoping CHEN and Xiaohong CHEN.Osteology of Quasipaa robertingeri (Anura: Dicroglossidae)[J].Asian Herpetological Reserch(AHR),2016,7(4):242-250.[doi:10.16373/j.cnki.ahr.150067]
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Osteology of Quasipaa robertingeri (Anura: Dicroglossidae)
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Asian Herpetological Research[ISSN:1006-6977/CN:61-1281/TN]

2016 VoI.7 No.4
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Osteology of Quasipaa robertingeri (Anura: Dicroglossidae)
Meihua ZHANG1 Xiaoping CHEN2 and Xiaohong CHEN1*
1 Department of Zoology, College of Life Sciences, Henan Normal University, Xinxiang 453007, Henan, China
2 School of Science and Technology, Jiaozuo Teachers College, Jiaozuo 454000, Henan, China
Quasipaa robertingeri osteological characteristics sexual dimorphism environment adaptation
The objectives of this study are to present a detailed and comprehensive description of the osteology of Quasipaa robertingeri (Anura: Dicroglossidae), to provide osteological evidence for taxonomy, and to explore the adaptive traits of Q. robertingeri. We comprehensively studied the osteology of 2 adult specimens (1 male 98A00351 and 1 female 98A0041) of Q. robertingeri using conventional methods. Our osteological examination of Q. robertingeri shows that 1) the nasals are large and connect with one another medially; 2) the sphenethmoid is completely covered by the nasals and the frontopatietals, and thus it is not exposed dorsally; 3) the vomerine teeth are well-developed; 4) the anterior parts of the diapophyses of the presacral II protrude forward in the male, the same observation was made in the presacrals II and III in the female; 5) the pectoral girdle is firmisternal; 6) the omosternum is fan-shaped posteriorly, and almost equal to the length of the mesosternum; 7) the xiphisternum is W-shaped with a deep incision posteriorly; 8) the humerus of the male is more developed in the crista ventralis, the crista medialis, and the crista lateralis; 9) the metacarpal II of the male presents with a nuptial tuber; and 10) the distal phalanges of the digits are anchor-shaped. Ultimately, the unique characteristics listed are most likely adaptations to the environment and amplexus of Q. robertingeri.


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