and Shells of Massachusetts Bay. 93 
Brown, Conch. pl. 50, fig. 11,) appears almost identical 
with Col. Totten’s shell. Brown represents ten species 
of this genus, with which, it may be presumed, Col. T. 
was unacquainted, at the time his description was given, 
from his remarking that he was at a loss where to place 
the shell, and considering it, rather provisionally, as an 
Acteon. Our species may easily be distinguished from 
his, by its less conical form, the whorls being much 
more convex, and the lower one more ventricose, besides 
its being destitute of the distinct, triple, revolving lines, 
characteristic of A. trifidus. It does not appear to be 
uncommon, and has probably escaped earlier notice only 
from its habits of concealment, and its diminutive size. 
SCALARIA SUBULATA. 
Plate III. fig. 4. 
N. corpore spirali, griseo, albo-maculato; pede brevi, crasso, ob- 
longo; tentaculis duabus; oculis ae nigris; ore orbiculato, cor- 
rugato ; Es nullà; operculo corneo 
acuto-turrità, ancia; PNE fuscescente, imper- 
f pinta: isa sub-convexis, contiguis; costis sub-eequalibus, de- 
pressis, superné angulatis; aperturà ovali; labro basi emarginato, 
intis albo. 
Long. seventeen twentieths, diam. of basis six twen- 
tieths, of an inch. 
Hab. Mass. Bay, vicinity of Cape Ann. 
My own Collection. 
Cabinet of Bost. Soc. Nat. Hist. and of N. Y. Lyceum 
of Nat. History. 
Description. Anmar with the body spiral, of a 
yellowish-gray, thickly and irregularly marked with dull, 
whitish spots, which are most conspicuous upon the 
