34 REPORT ON ZOOLOGY, MDCCCXLII1. 



Lund is inclined to distinguish Fells mitis as a separate species from 

 F.macnmt and pardalis. (Det. K. D. Vidensk. Selsk. Afh. ix, p. 121.) Upon 

 the last Lynx shot in Tlrariugia, Brehm has communicated some notices. 

 (Isis, p. 724). 



PINNIPEDIA. To the two species of Stenorhynchus Owen 

 has added a new one (Ann. Nat. Hist, xii, p. 331), and 

 has defined the genus, with its species, in the following 

 manner : 



Genus Stenorliynclim. Incisors |, canines {, molars \. Molars somewhat 

 compressed, deeply cleft into three or more lobes ; anterior molar \vith one 

 root, others with two. Head small, muzzle more or less elongated, claws 

 small. All in the South Sea. 



(1) St. leptonyX) Fr. Cuvier. Molars trilobate, lobes pointed ; nrazzlc 

 slender and elongated. (2) St. Weddellu, Less. Molars trilobate, lobes 

 blunt ; muzzle broad and less elongated. (3) St. serridetis, Ow. The three 

 anterior molars four-lobed, the two posterior five-lobed, lobes blunt ; 

 muzzle of moderate length and slender. 



From Phoca vitulina, De Kay (Nat. Hist, of New York, 

 Mamm. i, p. 53) distinguishes a Phoca concolor. 



" Uniform dark slate-gray ; young entirely bright yellow. Length 

 feet." Formerly abundant on the coasts of the State of New York, now 

 comparatively rare. 



Lesson (Rev. Zool. 1843, p. 256) would distinguish a Seal caught in the 

 Island of Oleron from Pit. monacJnts, under the name of Ph. Isidore! , by the 

 size and number of the incisors, which are two above and below ; and from 

 the common Seal by the hands being provided with an entire web, as well as 

 by the phalanges being completely enveloped in the web. 



Stannius, in Miiller's Archiv., 1842, p. 390, has under- 

 taken a full investigation into the dentition and skull of the 1 

 Walrus, Avith reference to the question, whether the varieties 

 in the conformation of the cranium justify the distinguish- 

 ing of several species in the genus Trichecus. 



Most of the crania compared by him belonged manifestly to one and the 

 same species ; one only differed so evidently from all the others in several 

 points, that from it the existence of a second species might have been con- 

 cluded ; he is not, however, prepared to affirm that these differences are 

 in reality sufficient to justify the establishment of a distinct species. In the 

 meantime IK; designates this abnormal form as Trichecus dulius. 



