168 
YOLUTA costa ta, 
TAB. CCXC.—Figs. 1, 2, and 4. 
Spec. Char. Ovato - fusiform, acute, costated, 
striated, with about three plaits upon the co- 
lumella. 
Syn. Yoluta costata. Brander , f. 45. 
Above twice as long* as wide, with nine costas upon 
each whorl ; the costae are broad and obtuse, a little 
swelled at their upper ends : they are crossed by striae 
that are least conspicuous about the middle of the body. 
The beak is short and very little curved : the columella 
is furnished with three folds, of which the low r est is 
much the largest : the mouth is very oblong, it has both 
lips smooth. The length of the spire is liable to va- 
riation ; it generally consists of seven turns. 
This is not a very common shell. The specimen, 
fig. 4, enriches the select cabinet of Miss Dent ; it is 
the largest I have seen, and has the mouth well pre- 
served. Fig. 1 represents a specimen in the possession 
of Miss Salisbury ; the striae upon the surface are re- 
markably neat. For the shorter variety, fig. 2, I am 
indebted to the kindness of Miss Dent : ail are from 
Barton. 
