xl 
Turbo Costatus of La- Semicostata, 178. 
march) (é). Striata, 178 (Rissoa Spi- 
Marginata, 176 (Rissoa rata? Sow. G.), f. 99. 
Acicula? Sow. G. R. Disjuncta, 179. 
Acuta ? Desmoulin. Labiosa, 179, f. 42. 
C.? Dentifera, 177. Rupestris, 184. 
Bryerea (Chesnelii ? Mi- Reticulata (f ). 
chaud on Rissoa). 
DOLLOP PDP IID DDWDDPOPOIOOIIOWWDLOPODIOOPOPmweemonmnnv as 
(e) A curious variety (if indeed no more than a 
variety) of this species has been figured, (f. 4,) from a 
specimen forwarded by Mr. Bean as Rufilabris? of 
Leach, which agrees perfectly with specimens collected 
by Mr. Sylvanus Hanley at Ryde. The shape, as in 
Parva, is oblong-conical, the 6 or 7 whorls moderately 
convex, and the lower ones longitudinally obtusely 
ribbed. Perfect specimens have very fine spiral striz. 
But the mouth is peculiar. It possesses an extremely 
thick white marginal callus on the outer lip, which is 
edged with rufous. The aperture is violet, a smoky 
shade of which forms the uniform colour of the shell. 
The rufous arched line which usually ornaments the 
exterior portion of the lip in Parva, is absent. 
(f) C. Rericunata. Fl, 306.—Turso R. Mont. t, 
21,7. 1, p.822.—Turt. Die. 212.—(Lin. Trans. 3, t. 13, 
