33 
VOLUTA muricina. 
TAB. DCXXVI — fig. 4, 5 & 6. 
Spec. Char. Ovate-fusiform, with a rather pro- 
duced base ; the lower part even, the upper 
tuberculato-costated ; the last whorl longer 
than the spire, rather convex. 
Syn. Voluta muricina, Lam. Ann. du Mus. i. 477. 
& xvii. 75 ; Lam. Hist. Nat. vii. 350, Desk. 
Coq. Foss. ii. 697. pi. 91./. 18, 19. pi. 93. /. 3, 
4. & pi. 94./ 3, 4. Morris , Cat. 168. 
So variable is this shell, that it is almost impossible to de- 
fine it. The costae are often elongated and rounded, with 
a protuberance at their upper terminations (fig. 5 and 6). 
This is particularly the case with those upon the spire ; at 
other times they are very short, and assume the form of 
angular tubercles (fig. 4) : the length of the shell also 
varies with the form of the costae : when perfect the surface 
is finely striated transversely. Fig. 5 represents a variety 
approaching to the following species. 
The French localities are Grignon, Parnes, Mouchyand 
Courtagnon. The fine striae on the surface appear to have 
escaped Deshayes’ observation. 
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