104 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



situated at the ends of the row of four and are about one-third hirger 

 than the corresponding bones in the Virginia deer. 



The first phalanx, probably a hinder one, is a larger and heavier 

 bone than the corresponding one in the Virginia deer and smaller 

 than in the wapiti. The following measurements are presented : 



MEASUREMENTS OF HINDER FIRST AND SECOND PHALANGES IN MILLIMETERS. 



The ungual phalanx mentioned fits accurately to the second pha- 

 lanx just described. The extreme end is broken off; but the original 

 length was not far from 45 mm. The height, taken perpendicularly 

 to the plantar surface, is 30 mm ; the greatest thickness 18 mm. 



ODOCOILEUS VIRGINIANUS (Zimmermann) . 



Apparently belonging to this deer are the distal ends of two radii, 

 right and left (Cat. No. 9194). The largest piece is about 65 mm. 

 long. Both pieces show well the articular end. The width just 

 above the articular surface is 35 mm. While there is a possibility 

 that these bones belong to another species there is nothing in them 

 to prove this. 



Family ELEPHANTIDAE. 



ELEPHAS COLUMBI? Falconer. 



From Cavetown there are present two fragments (Cat. No. 9195), 

 taken together measuring about 300 mm., of a bone which appears to 

 be the radius of an elephant; and, if this identification is correct, 

 the species is very probably that named above. The bone is some- 

 what crushed, but its conformation agrees better with that of the 

 elephant than that of the mastodon. There is in the collection the 

 neural arch of a dorsal vertebra of a proboscidean (Cat. No. 9196) ; 

 but it is impossible to say v^diether this belonged to an elephant or to 

 a mastodon. 



Family SCIURIDAE. 



SCIURUS TENUIDENS, new species. 



Plate 4, fig. 20. 

 Type specimen. — An upper left incisor, with part of the skull. 

 Type JocalitT/.— Cavetown, Washington County, Maryland. 

 Type formation. — Pleistocene. 



