Sever, David M <br/><br/>
Comparative anatomy and phylogeny of the cloacae of salamanders (Amphibia: Caudata). II. Cryptobranchidae, Hynobiidae, and Sirenidae.  [electronic resource] 

 -  Journal of morphology  Mar 1991 
 - 283-301 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1097-4687 
<br/><br/><label>Standard No.: </label>10.1002/jmor.1052070306  doi