UNIVALVE MOLLUSCA. 461 
all over the surface. About roo species of Triton are known. They 
inhabit many seas, but more especially those of warm countries. 
Triton variegatum, commonly called the Marine Trumpet (Fig. 297), 
Fig. 300.—Fusus proboscidiferus Fig. gor.—Fusus pagodus _—‘ Fig. 302.—Fusus colus. 
(Lamarck). (Lesson), 
is a very large shell, which even attains a length of sixteen inches ; 
it is enamelled with great elegance in white, red, and tawny brown. 
It comes from the Indian Ocean, where the shells are very common. 
Zriton lotorium (Fig. 298) is of a reddish brown externally and white 
within. The Zriton anus (Fig. 299) is of a whitish colour, spotted 
with red. 
