Cones, Volutes, Mitres, and Olives. 67 
specific name, episcopalis, comes from the Latin, and 
means of, or like a bishop. The Tanned Mitre (I. 
adusta), from the Latin adustuws—burned or parched, 
is what is called fusiform and turreted ; that is, 
shaped like a spindle, and having a spire or turret- 
like termination. The streaks of colour are trans- 
verse, that is, running the length of the shell; or 
in other words, they are longitudinal. This, too, 
comes from the South Sea Islands. Fig. 2 is the 
Wrinkled Mitre (M. corrugata), from the Latin 
corrugo—to wrinkle. It is very different, both in 
shape and markings, from the last species; the 
whorls, it will be seen, are angulated or pointed 
above, and the lower part of the shell is much 
larger than the spiral or upper portion. It is a 
true mitre nevertheless, although not just such a 
one as a bishop would like to wear. It inhabits the 
Indian Ocean, the coast of New Guinea, ete. 
Outves. These, for richness of colour and bril- 
liancy of effect, will bear comparison with any 
genus of shells. Naturalists speak of them col- 
lectively as Olivine. They belong to the Volute 
family, and are said to number about eighty species. 
Most of those which have reached this country 
have come from the Mauritius, where they catch 
them with lines baited with portions of _Cuttle- 
