THE CAMAS RAT. 
201 
viz., that we consider the so-called Diplostoma bulbivorum to be identical 
with the animal we have just described as Pseudostoma borealis , although the 
description given by Richardson has apparently no reference to the latter, 
but on the contrary describes his Diplostoma as having the true mouth 
vertical (?). He says : “ The lips, which in fact are right and left, and not 
upper and under,” &c. Besides, in the beginning of his article he mentions 
that the skull is wanting. We think we may therefore reasonably pre- 
sume, that although the skin had been so twisted and disfigured by putting 
it into an unnatural form that the appellation which Mr. Douglas gave it, 
as “ the animal known on the banks of the Columbia by the name of the 
Camas Rat,” did not seem to apply to it, we shall be right in rejecting both 
the generic and specific names given by our friend Sir John Richardson 
to so very imperfect a specimen, and in believing that the skin was in 
reality (although much injured and distorted) nothing but the Camas Rat, 
as Douglas called it. 
vol. hi. — 26 
