79 
bod3'^ whirl, and slightly reflected ; labrum incrassated, and with 
elevated lines upon the fauces, which do not attain the edge of the 
lip. 
Length half an inch. Inhabits the shores of the Southern 
States. Cabinet of the Academy and Philadelphia Museum. 
A species which not unfrequently occurs, it is very distinct from 
the two preceding ones, and may be readily distinguished from them 
by the incrassated outer lip. 
Cerithium dislocatum. — -Shell attenuated, acute at the apex ; 
volutions with numerous, minute, revolving, impressed lines, and 
from fifteen to eighteen transverse, elevated costa to each volution, 
which are dislocated near the summit of each volution by a revolv- 
ing line, as deeply impressed as the suture. 
Length one and one-fourth of an inch. Inhabits the coast of 
the United States. Cabinet of the Academy and Philadelphia 
Museum. 
This shell is very common on the Southern shores, particularly 
on that of East Florida, but I have also found specimens on the 
shore of Maryland. Lister, tab. 979, fig. 36, represents a shell very 
similar to this, but larger. 
The efiect of the impressed line, which revolves above the mid- 
dle of the volutions, is, to separate the longitudinal raised lines 
into two series, whereof the lines of the superior series are much 
shorter and thicker than the others. 
Fusus ciNEREUS. Shell with a cinereous epidermis, reddish- 
brown beneath • volutions cancellate, the transverse costa eleven, 
robust; revolving lines filiform, irregularly alternately smaller, 
crenating the edge of the exterior lip, which is acute, and alterna- 
ting with the raised lines of the fauces ; fauces tinged with choco- 
late color ; beak short, obtuse, not rectilinear ; labrum not incras- 
sated. 
Length one and one-fourth of an inch. Inhabits the estuaries of 
the United States. Cabinet of the Academy and Philadelphia 
Museum. 
I have frequently found this species in oozy places of the bay 
of Grreat Egg Harbor, and on the Eastern shore of Maryland. My 
brother, B. Say, ascertained that it is also an inhabitant of the coast 
of New Jersey. 
