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 Defrandi 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 ; 



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 striea 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 mitrce. 



* Min. Conch, pi. 396. 



