394 MARINE INVERTEBRATES 
it effectively in from twenty to one hundred feet of water. The spire is 
high and regular, with seven to eight slightly rounded whorls. The suture 
is simple, and there are faint revolving grooves. The epider- 
mis is thick, horn-colored, and sometimes velvety; the lip 
simple; and the anterior canal produced. The shell is pure 
white within. The operculum is corneous, with a subterminal 
nucleus. The animal is the same as Buccinum, but with 
smallirregular specks of black. This shell isfound from three 
to five inches long. 
S. pygmeus. This species has the same range as that of 
the species just described, and often occurs associated with 
the young of the latter. It may be distinguished from S. 
Stimpsont by the greater number of whorls, the more promi- 
nent revolving ridges, and the smaller aperture. The epi- 
dermis is drab-colored and strongly corrugated, inclined to hirsute. 
The color of the shell is pure white. Length one inch to one and a half 
inches. It is found from low-tide mark to very considerable depths. 
Sipho 
pygmeus, 
Genus Siphonalia 
S. kellettii. Siphonalia is one of the Pacific genera of the Buccinide, 
which finds its greatest development in Japanese waters. One of these 
Japanese species, S. kellettit, is also found in California. It has the typical 
animal of the Buccinide, and a fusiform shell white to brownish in color, 
and three to five inches in length. It is conspicuously marked upon the 
whorls by a revolving series of large rounded knobs and _ indistinct 
revolving grooves. The operculum is corneous, the nucleus subterminal. 
It is found in shallow water to low-tide mark. (Plate LXXIV.) 
Genus Tritonidea 
T. tincta. A Floridian species which ranges from Hatteras to the 
West Indies, and finds its station near low-tide mark, upon coralline 
rock or rough, stony bottom. It is about one inch in length, is of a 
brownish horn-color, and has an oval aperture with a crenuiated outer 
lip and a deep anterior canal. An entering ridge of white enamel at 
the top of the columellar lip forms, with one of the teeth of the outer 
lip, a posterior canal. It is sculptured, with revolving ridges and cross- 
ing longitudinal folds. The color is bluish-white within the shell, touched 
with yellow about the anterior canal and along the edge of the outer lip. 
(Plate LXXIV.) 
FAMILY TURBINELLIDE 
Genus Fulgur 
Of the two genera of this family which occur in American 
waters, Fulgur may be taken as the most characteristic mollusk 
of the American Atlantic fauna; that is to say, Fulgur occurs 
only on the American east coast. Its range is from Cape Cod to 
the West Indies. The two Northern species are F. carica and 
