Journal of the Philadelphia Academy. 261 



drangular after death. The fore-legs are very short, and the pos- 

 terior part of the body slenderer and weaker than the anterior. 

 The colour of the upper parts is tawny-brown mixed with black ; 

 that of the lower parts is cinereous. Its length from the nose to 

 the an«s is five inches ; the tail being only two inches long. 



The remaining articles relating to the Mammalia have already 

 been laid before our readers : the first of them entitled " A new 

 genus of Mammalia proposed, and a description of the species 

 upon which it is founded, by T. Say and G. Ord," having been 

 given at page 293 of our second volume, with figures of the 

 animal, Neotoma floridana^ and of its teeth ; and the second, the 

 " Description of a new species of Mammalia whereon a genus is 

 proposed to be founded," by the same authours, having also been 

 transferred to page 296 ; the teeth having been figured to illus- 

 trate the generic characters of the Sigmodon hispidum. 



To the department of Ornithology only one naturalist has con- 

 tributed, M. Charles Lucian Bonaparte, Prince of Musignano, 

 v/ith whose high talents and character the naturalists of this coun- 

 try have so recently had opportunities of becoming acquainted, 

 and two communications from whose pen, in the same branch of 

 science, enrich our present volume, at p. 49 and p. 212. Zealous, 

 devoted to science, availing himself advantageously of the ob- 

 servations of others, carefully weighing their value and comparing 

 them with each other and with those deduced from his personal 

 experience ; such are the characteristic traits which authorize 

 the anticipation of the most important results from his perse- 

 verance in the studies he has adopted. Of the continuation of 

 his '' Observations on the Nomenclature of Wilson's Ornitho- 

 logy," it is unnecessary to speak, as we have already adverted 

 to it in our second volume in terms of just approbation. The 

 other articles from his pen consist of a " Description of a new 

 species of South American Fringilla,^^ F. xwithoroa, Dusky ; 

 rump yellow ; primaries edged with greenish ; tail tipped with 

 white : " Descriptions of ten species of South American Birds : 

 and " Descriptions of two new species of Mexican Birds." The 

 latter are the Garrulus ultramarinus, Blue, beneath ashey white; 

 tail equal; and the Cassicus melanicteruSy Black; crested; uropy- 



