224 DESCRIPTION OP VERTEBRATE REMAINS, CHIEFLY 



Just behind the palatine articular impression externally is seen the usual open 

 part of the infra-orbital canal with its branches extending to the supra-orbital fossa. 



The nasal passages present the same character as in C. trachops. The right 

 one appears to have been slightly the wider, while the left appears to have had a 

 greater fore-and-aft extent. 



The length of the fossil in its present condition is a little over a foot from the 

 anterior nasal orifices. When entire it has been about fourteen inches lonar. The 

 breadth at the supra-orbital eminences is about eleven and a quarter inches. The 

 depth of the base of the rostrum from the expanded extremity of the intermaxillary 

 ridge to the palatine carina, is three and seven-eighths inches. 



EBOROZIPHIUS. 



Eboroziphius ccelops. 

 Leid^^: Proceedings Academy Natural Sciences, Philadelphia, 1816, 81. 



Another specimen from the Ashley River collection of fossils belonging to the 

 Pacific Guano Co., represented in fig. 5, PI. xxx., and fig. 3, PI. xxxi., likewise 

 consists of the detached muzzle of a Ziphioid Cetacean apparently pertaining to a 

 genus different from the foregoing and others previously described. It possesses 

 the same ivory-like density of the preceding specimens, and as in them, all the 

 constituent bones are completely co-ossified. Unlike the others, it is white on the 

 surface, with pale brown in freshly fractured places. The specimen has lost the 

 supra-orbital processes of the maxillaries, and the end of the beak for several 

 inches is otherwise mutilated and considerably water- worn. In its present condition 

 it is fifteen and a half inches in length. It pertained to an animal about the size 

 of Choneziphius trachops, but the muzzle appears to have been less narrowed in 

 front. 



The inferior or palatine part of the specimen presents nothing strikingly differ- 

 ent from ,that of the preceding specimens, referred to Choneziphius trachops and 

 C. Hops, but the upper part is sufficiently peculiar to have led me to ascribe the 

 fossil to a different genus with the name above given. 



The intermediate portion of the rostrum above forms a wide gutter, bounded 

 on each side by a thick elevated tuberosity nearly occupying the position of the 

 conspicuous rugged tract of the maxillaries of Choneziphius trachops. The max- 

 illary tuberosity on the inner side is convex from behind forward. Its upper sur- 

 face, slightly concave, slopes from a curved acute ridge, defining it from the inner 

 side, forward and outward to the lateral acute border of the rostrum. In front, 

 the tuberosity subsides and is continuous with a slight ridge advancing upon the 



