New Species of Massachusetts Shells. 283 
die length of the shell, parallel to the axis, oval, angular 
superiorly, rounded inferiorly ; labrum not thickened ; 
body whorl entering the aperture in the upper of the 
left side, and separating the margins ; columella emerg- 
| at the middle of the labrum, convex, reflected, 
smooth, without amy fold; opereulum ? 
Length, .15 inch ; breadth; .07 inch. | 
Inhabits the harbors of. New Bedford and vicinity, 
Cabinets of the Boston Society of Natural History, of 
A. A. Gould, M. D. , George B. Emerson, Esq., and 
my own. 
Remarks! This FN was found after my -return 
from New Bedford, among a large number of the Turbo 
obligàtus; and Aéteon trífidus, which were brushed 
into a box from wet. planks, to which they were cling- 
ing, not far above low water mark. Six specimens 
were thus found ; also four more with the A. trifidus in 
a parcel of sand from the harbor of New Bedford. 
Since then I have found à single pares by dredging 
upper whorls were brown, but the rest was whitish. 
have also received several specimens from P. G. Sea- 
bury, Esq. who found them at Tiverton, R. I., in Seat 
pany with the Turbo minutus, Totten, in the sand” 
- It resembles. the Jamina exigua, Couthouy, Pt : 
Journ, Nat. Hist. II. vaio important charai 
but. differs in others. e epidermis is dark brown, 
close, and shining ; that of the J. exigua is very pale, 
nearly white, membranous and loose, and dull; the 
body whorl in our shell i is much less ventricose and more 
cylindrical ; incremental “Strie plainly visible on the 
