480 Storer on the 
an uniform pale brown; of the latter, a rusty color 
with spots of a deeper brown in the recent speci- 
men; in the former, the teeth are separated; in 
the latter, they are very close to each other, striking 
when the mouth is closed, upon each other's tops; 
the length of the pectorals of the former, is nearly 
two thirds the length of the head ; in the latter, it 
is one line only more than one fourth the length of 
the head. If we can judge from the figure of the 
“ limanda” in “ Yarrell’s British Fishes,” (and the 
figures generally are exceedingly aceurate,) its dor- 
sal fin commences back of the eye ; in the “ ferru- 
ginea,” it commences over the anterior third of the 
upper eye. 
P. dentata. Mitchell. The Flounder of New York. 
Trans. Lit. et Philosoph. Soc. N. Y. vol. i. p. 390. 
This species, known by the fishermen as the 
* Sand-dab” in the Boston market, is frequently 
taken in the winter season in deep water at Prov- 
incetown ; and although a marketable fish, is con- 
sidered inferior to the “ plana." In the stomach of 
this species I found a new “ Nucula,” which has 
as yet been detected only in this species, and 
which I described and figured in the second volume 
of this Journal. The largest individual I have seen 
of the “ dentata," was twenty-one inches in length, 
eight and a half inches in width, and weighed three 
and a half pounds. 
The eyes upon the right side of the body. All 
the right side of the body and the fins of a reddish 
