TURBO. 869 



ACUTANGULUS. 129. Shell turreted, with one acute 

 transverse keel in the middle of each whirl. 



Turbo acutangulus. Linnaus S^st. Naf. p. 1239- Mar- 

 tini, iv. p. 250. t. 151. f. 1413. Born Mas. p. 356. 

 Schroeter Einl. ii. p. 47. Gmelin, p. 3607. Schreibers 

 Conch, i. p. '<i87. 

 Lister Conch, t. 591- f- 59- ? Gualter, t. 58. f. B. KnorVj 

 iii. 1. 19- i.5. 

 Inhabits the coasts of Tranquebar. Martini. 

 Shell three or four inches long, and rather more than one 

 fourth as broad, of a pale horn or greyish colour, and some- 

 what transparent; it has about fifteen transversely striated 

 whirls, with a sharp keel in the middle, and a smaller one at 

 the base of each. Lister's figure has been quoted by Mar- 

 tini, Born, Schroeter, and Gmelin, for this species, and is 

 marked by Lister to have been found on the coasts of Eng- 

 land. 



DUPLiCATUs. 130. Shell turreted, with two pro- 

 minent acute ribs in the middle of each whirl. 



Turbo duplicatus. Linnceus Si/st. Nat. p. 1239. Pennant 



Zool. iv. p. 129. t. 81. f. 1 12. Martini, iv. p. 251. 1. 151. 



f. 1414. Born Mus. p. 356. Schroeter Einl. ii. p. 48. 



Gmeliji, p. 3607. Schreibers Conch, i, p. 287. Dono^ 



van, iv. t. 112. Maton and Racket, in Lin. Trans, viii. 



p. 175. 

 Strombiformis bicarinatus. Da Costa Brit. Conch, p. 1 10. 



t. 6. f. 3. 

 Bonanni Rec. and Kirch. 3. f. 1 14. Lister Jnirn. Ang. 



t. 3. f. 7, and Conch, t. 591. f.58. Petiver Gaz. 1. 102. 



f. 20. Gualter, t. 58. f. C. Seba, iii. t. 56. f. 7 and 8. 

 Inhabits the European Seas. Linnmis. Coasts of Persia. 



Bonanni. England. Lister, &;c. Mediterranean. Seba. 

 Shell four or five inches long, and one-fourth as broad, with 

 about fifteen whirls, and of a whitish or greyish horn-colour ; 

 each whirl has several transverse strize, of which two are 

 much larger and more elevated than the others. Lister says 

 this shell has been found on the coasts of Scarborough, and 

 Dr. Leach has lately taken it by dredging on those of the 

 West of England. 



TORCULARis. 131. Shell turreted, with the whirls 

 transversely striated, and an obtuse rib near 

 . both the extremities of each. 



VOL.11. • V ' 



