66 Beautiful Shells. 
the Undulated Volute (V. undulata), the Latin for a 
little wave is undula, and these marks are like the 
lines caused by the flowing of the waves on a sandy 
shore: this shell is found chiefly in the South 
Pacific ; the animal which inhabits it is prettily 
marked with zebra-like stripes. Fig. 4 is called the 
Pacific Volute (V. Pacificus), the shape, it will be 
seen, 1s somewhat different, being more angular, 
and it is without the waved lines. Fig. 5, the Bat 
Volute (V. vespertilio), is more decidedly knobbed 
or spiked, approaching nearly to the shape of some 
of the coronated ones. This species is found in 
the Indian seas; the specific name is the Latin for 
a bat. 
Mirres. These are usually considered as a genus, 
or branch of the Volute family; the scientific name 
is mitra. The form is generally long, slender, and 
pointed, something like the bishop’s mitre, hence 
the common name of the genus. In the Episcopal 
Mitre (M. episcopalis), Plate VI., Fig. 1, we see 
this form in its greatest perfection ; this is a hand- 
some shell, found in the Indian seas and on the 
coasts of the South Sea Islands. The mollusk is 
remarkable for a long proboscis, double the length 
of the shell, the extremity of which swells into a 
club form, and has an oval orifice or opening: the 
