Roth, Henry D. <br/><br/>
Journal of The British guiana museum and zoo of the Royal Agricultural & Commercial society ;   no.31 

 - Washington-US :   Royal agricultural & commercial society,   1961. 
 - páginas 59-62 
 - Irregular 
 - No.31 (Sep. 1961) 
 - Journal of The British guiana museum and zoo of the Royal Agricultural & Commercial society ;   no.31 .
 - Royal agricultural & commercial society. .
<br/><br/> Art¡culo dentro de: Appendix II.