174 CONTRIBUTIONS 
Observations. This species is allied to the Defrancii, 
above described, by its general form, but differs in being 
rather wider, in being more angular above, in having larger 
spines, and in having a smooth surface, except on the base. 
It has a stronger resemblance in its form to V. spinosa 
(Lamarck) than the Defrancii described above, but is spe- 
cifically distinct. It resembles both the athleta and depau- 
perata* (Sowerby), but has more spines than the former, 
and has fewer than the latter. 
V. striata. Plate 6. Fig. 183. 
Description. Shell turbinate, covered with minute, 
transverse striae ; substance of the shell thin ; spire P 
suture small, irregular ; whorls » subcanaliculate 
above ; mouth contracted, nearly straight ; columella with 
five folds ; outer lip sharp. 
Length.... Breadth .4, of an inch. 
Observations. Differs from those described above, in the 
number of its folds, as well as in being without spines. It 
more closely resembles the V. Cooperii (herein described) 
but is less inflated, and has not, like that species, folds on 
the superior part of the whorls. On that part of the pre- 
sent species, the striz are closer and deeper, and it is there 
somewhat depressed. Not having a perfect specimen, some 
of the characters are necessarily deficient in the descrip- 
tion. The character of its folds approaches the mitre. 
* Min. Conch. pl. 396. 
