RODENTI A. — LEinv. 113 



posteriorly; and the latter measures six-and-a-half lines transversely, two-and-a-half lines 

 antero-posteriorly. Neither differ, in any important character, from the corresponding 

 portions of their homologues in the recent Capyhara. 



The portion of a molar, of Prof. Holmes' collection, consists of the anterior pair of 

 columns of the third tooth of the left series of the lower jaw. 



Genus, LEPUS. — Linn. 



LEPUS SYLVATIOTJS. 

 Plate XXII, Pig. 1. 



Lepus sylvaticus, Bachman, Leidij, Trans. Amer. Phil. Soc. 



Remains, apparently, of the common Gray Rabbit have been found in association with 

 those of other rodents, and of the extinct Peccary, near Galena, Illinois. 



A few specimens of molar teeth, black in color, apparently belonging to this species, 

 were obtained by Prof. Holmes and Capt. Bowman, from the Post-Pleiocene beds of the 

 Ashley river. 



Genus, FIBER. — Cuv. 



FIBER Z I B E T H I C U S . 



Plate XXII. Fios. 1-4. 



Fiber zibethicus, Ciwier, Harlan, etc. 



The collections of Prof. Holmes and Capt. Bowman contain numerous specimens of 

 blackened molar teeth, together with a few incisors and fragments of jaws, from the Ashley 

 Post-Pleiocene deposit, which neither differ in form nor size from the corresponding parts 

 of the recent Musk-rat. 



