1869.} CLASSIFICATION OF THE CARNIVORA. 23 
Fig. 10. 
Cryptoprocta ferox. From a specimen in the British Museum. The foramen 
between c and the occipital condyle is an accidental vacuity, existing only 
on one side of the skull, (The letters as in the preceding figures. ) 
verride as crdinarily constituted, I think, with them, that it must 
form a family by itself; but I look upon it as a perfectly annectent 
form, as nearly allied to the Viverride on the one hand as to the 
Felide on the other. 
The visceral anatomy of Cryptoprocta is at present almost entirely 
unknown ; but the little information we possess shows that in one re- 
spect it departs widely from both the families with which it otherwise 
appears so nearly connected—that is, in the possession of a large os 
penis. In the British-Museum skeleton this bone is 2,3,” long, slen- 
der, compressed, slightly curved, not grooved or divided anteriorly, 
rounded and slightly dilated at each end, but thickest posteriorly. 
Passing over for the present the consideration of several somewhat 
doubtful forms, it will be convenient to examine Mr. Turner’s third 
type of Carnivorous cranium, that of the Dog. In the genus Canis 
(figs. 11 & 12, p. 25) the auditory bulla is externally simple, smooth, 
and evenly rounded. The meatus has a rather prominent under lip, 
though less so than in the Bears. Interiorly a very incomplete 
septum (s) springs from its anterior wall in exactly the same situation 
as in the Felide, and divides the front part of the chamber into an 
