GASTEROPODS 379 
T. quadripunctata. Much smaller than the preceding; rose-red, 
with four conspicuous reddish-brown dots on the back, two on each 
side of the median dorsal groove. Found in Florida. (Plate LXX.) 
On the California coast are also several species of Trivia and one 
Cyprea, but they belong to the Southern California peninsula, and are 
not commonly found farther north than Santa Barbara. The cowry is 
called C. spadacea ; it grows to a length of about two inches, is highly 
polished, with white base and sides, and is bright chestnut above. As 
is usual in the cypreas, the spire is covered with enamel. 
T. californica. A species found at Monterey and thence south. It 
lacks the median dorsal groove, and has a whitish color-streak instead. 
The ribs are white, and the ground-color of the shell is dark brownish- 
red. These little shells, when found upon the beach, are called “coffee- 
shells,” from their somewhat striking resemblance to the coffee-bean, 
being flat on one side and rounded upon the other, and otherwise resem- 
bling it in size and color. (Plate LXX.) 
T. solandri. This species may be found at Santa Barbara and San 
Diego. It is twice as large as the last species, and has a very deep groove 
in the back and widely separated ribs. Color rose to brown. The 
groove on the back penetrates into the white portion of the shell. 
FAMILY DOLIDE 
This small family furnishes two conspicuously handsome spe- 
cies belonging to the genus Doliwm, which range from Hatteras 
southward into the West Indies. 
GENus Dolium 
D. gatlea and D. perdix. The animal in both of these species has a rela- 
tively large foot, which spreads out while in the act of creeping and seems 
far too bulky ever to be withdrawn into the shell. It is square in front, 
and, bulging out far to each side, tapers to a blunt point behind. The 
most noticeable feature of the animal, however, is the great develop- 
ment of its proboscis, which is quite as long as the shell itself. The 
siphon is also long and is curved over the back of the shell. The 
operculum is wanting in adult specimens. The shell of D. galea some- 
times attains a length of eight inches, with a diameter of about six inches ; 
the other species is not quite so large. They are both ventricose, 
thin, inflated shells, with large body-whorls and crenulated lips. Both 
are slightly umbilicated and ornamented with revolving, regularly spaced 
ribs. The ribs of D. perdix are not so highly raised, but they are painted 
with light reddish-brown spots. D. galeais white, with a lower spireand 
deevly channeled sutures. (Plate LXXI.) 
Genus Pyrula 
P. papyratia. One of the commonest as well as one of the hand- 
somest of American shells. It is a Floridian species, found in shal- 
low water and on sandy bottoms. The animal greatly resembles that 
