MAMMALS SORICItfAE BLARJNA CItfEREA. 49 



fourth tooth is barely visible from outside. The lower anterior incisors have slight indications 

 of two or three lobed dentations. 



Measurements. 



No. 320. No. 94, (stretched?) 



The specimens of this species before me from South Carolina agree very well with the 

 descriptions of Dr. Bachman, except as to the number of the teeth, the formula given by him 

 being + ^5 + ^= 26. This is, however, probably an error, as in a specimen presented by 

 Dr. Bachman to the Academy of Natural Sciences, and labelled by him S. cinereus, the formula 

 is as given at the beginning of the article, the sum being 30 teeth instead of 26. The species 

 is not reproduced in the " Quadrupeds of North America," whether omitted by mistake, or 

 considered to be the young of some other, is not stated. 



The preceding descriptions were taken from dried skins, which afford very unsatisfactory data 

 for the critical definition of species. Number 1670 differs in having the teeth much less deeply 

 colored, and in being of a greenish yellow color beneath ; this is, however, owing doubtless to 

 the fact that it had been for a time immersed in alcohol. 



A very badly preserved specimen in alcohol from Indian River, Florida, exhibits some differ 

 ences, especially in the longer tail, and larger size generally, including the skull and feet. For 

 the present, however, I shall refer it to B. cinerea. 

 1 L 



