TURBO. 846 



it might be mistaken for Helix Canalis, were it not for the 

 aperture of that shell being sub-angulated, and the pillar-hp 

 with a much larger canal and umbilicus. It also bears some 

 resemblance to T. quadrijasciatus, but is not near so thick 

 and strong, and is destitute of the subcarinated edge at the 

 base. 



QUADRiFASCiATUS. 69. Shell sub-conical, small, 

 smooth, with the body-whirl somewhat keel- 

 ed at the base; pillar-lip broad, with a small 

 groove ending in an umbilicus. 



Turbo quadrifasciatus. Montagu Test. p. 328. t. 20. f. 7. 

 Maton and Racket, in Lin. Trans, viii. p. l67. 



Inhabits the coasts of Cornwall and Devon, adhering to Algae. 

 Montagu. Langland Bay near Swansea. L. W. D. 



Shell about three-eighths, or a quarter of an inch long, and half 

 as broad, with four whirls, of which the body-whirl is larger 

 than the whole spire; colour white, usually marked with four 

 pale brown narrow, or sometimes only two broader bands on 

 the body-whirl, and half that number on the next whirl. 



SANGUINEUS. 70. Shell conical, convex, sub-um- 

 bilicated, striated, smooth, and the whirls 

 slightly grooved. 



Turbo sanguineus. Linnaus Si/st. Nat. p. 1235. Chem- 

 nitz, V. p. 172. t. 177. f. 1756 and 1757. Schroeter Einl. 

 ii. p. 27. Gmelin, p. 3598. Schreibers Conch, i. p. 276. 

 Inhabits the Mediterranean on the shores of Algiers. Linnceus. 



Naples. Ulysses. 

 Linnzeus has described this species to be as large as a pea, of 

 a blood red colour, convex, with the whirls obtusely groov- 

 ed, and sometimes umbilicated and sometimes not ; the shell 

 which Chemnitz has figured appears to be half an inch long, 

 and equally broad, of a whitish colour, and somewhat tessel- 

 lated with bright red spots. 



ATRATUS. 71. Shell with crowded transverse rows 

 of alternately cinereous and black granules ; 

 aperture silvery, striated within, and the pil- 

 lar one-toothed. 



Turbo atratus. Gmelin, p. 3601. Schreibers Conch, i. d. 

 279. ^ 



