﻿370 I1ALLOWELL ON TRIGONOPHRYS RUGICEPS. 



viscera are shrunken, but making allowance for this and its smaller size, the stomach 

 appears considerably less, being not more than an inch and a half in length, and the 

 intestine is much shorter, measuring but four inches three lines in length ; the fatty 

 bodies are much foliated, the kidneys measuring eight lines, the testes four in length. 



Gen. Remarks. — The general shape of the head in this genus, resembles very much 

 that of Ceratophrys, along side of which it should be placed in a natural arrangement, 

 but it differs from Ceratophrys in the form of the eye-lids, which do not terminate 

 in the latter, and the form of the body has no resemblance to that of Trigonophrys. 

 The teeth also are different. 



In Megahphrys, a genus inhabiting Java, and comprising but one species, [M. mon- 

 tana,) the first cuneiform bone presents no external prominence, which in Trigon- 

 oplirys is remarkably large. We, therefore, although not having in our collection 

 any of the allied genera, with the exception of Ceratophrys, venture to propose for this 

 singular and beautifully colored frog a new name. The maxillary teeth form one of 

 its most striking characters, being larger than those of any species of frog with which 

 we are acquainted, those of the largest bull frog being considerably smaller, as well as 

 those of the large Surinam frogs in our collection. In Cystignathus ocellatus, however, 

 the vomerine teeth are much more developed. 



