815 



#enus XXVIII. 



TURBO: 



SHELL UNIVALVE, SPIRAL AND SOLID ; APERTURE 

 COARCTATE, ORBICULAR AND ENTIRE, 



Subdivisions. '\ 



* Imperforate, and the Pillar-lip flat. 

 ** Imperforate and solid. 

 *** Umbilicated and solid. 

 ****' Cancellated. 

 ***** Turreted. 

 ****** Depressed. 



* Imperforate, and the Pillar-lip fiat. 



OBTUSATUS. 1. Shell roundish, smooth, very ob- 

 tuse and more ventricose above ; margin of 

 the pillar flat. 



Turbo obtusatus. Linnccus Si/st. Nat. p. 1232. Chemnitz, 

 V. p. 234. t. 185. f. 1854, a to/. Schroeter Einl. ii. p. 3. 

 Gmelin, p. 3588. Schreibers Couch, i. p. 268. 

 Turbo littoreus, Var. ? Montagu Test. p. 302. 

 Inhabits the Northern Ocean. Linnccus. 

 Linnaeus has not given any reference, or made any addition to 

 the above short description. The shells figured by Chemnitz 

 are very hke T. littoreus, which in an early stage of growth 

 is very variable both in shape and markings. 



f The following of Gmelin's species are omitted. T. Afer, p. 3602. T. cry. 

 stalUnus, p. 3609. T. Ludus, p. 3601. T. marginellus, p. 3602. T. obtusiis, 

 p. 3611. T,planorhis, j^,3&02. 



