GASTEROPODA. PALS 
low water to 10 or 20 fathoms; one minute species has been 
dredged at 50 fathoms. 
Fig. 79. One of the buccal plates of Triton, 46 (Wilton.) 
Fossil, 45 species. Hocene—. Britain, France, &c. Chili. 
The great triton (TZ. tritonis) is the conch blown by the 
Australian and Polynesian Islanders. A very similar species 
(7. nodéferus) is found in the Mediterranean, and a third in tho 
Fig. 80. Teeth of Triton, 240, (Wilton.) 
West Indies. The buccal plates and teeth of Triton are shown 
in Figs. 79, 80. 
FASCIOLARIA, Lam. 
Etymology, fasciola, a band. 
Type, F. tulips. Pl. V., Fig. 1. i) 
Shell fusiform, elongated ; whorls Ute Wy i 
round or angular; canal open; \ 
columellar lip tortuous, with several \ ) ry! 
oblique folds. Operculum claw- 
shaped. #. gigantea of the South 
Seas attains a length of nearly two Fig. 81. Fasciolaria Tarentina, 
feet. The teoth of Lasciolaria re- ae 
semble those of Musus Islandicus. In Buccinwm undatum, the 
median tooth has five, or rarely six denticles; and Mr. Wilton 
= 
