PART II. 



TURBIN^B. 343 



SCALARIA Lam. Shell turreted, marked with longi- 

 tudinal rihs ; aperture circular, entire, 

 pretiosa. En. Meth. 481. f. 1. 

 TURRITELLA. Shell turreted ; spire subulate, very 



long; umbilicus none. 



Rissoa Fremonville. Spire moderate, perpendicular, 

 acute ; outer lip thickened ; aperture oval. 

 R. reticulata. Sow. Man. 346. 



Turritella Lam. Aperture round, entire ; outer lip thin. 

 T. duplicata. En. Meth. 449. f. 1. 



Eulima Desh. Shell smooth, polished ; spire distorted, 



acute j outer lip thin, dilated in the middle. 



E. labiosa. Sow. Man. f. 347. marmorata. Ib. f. 348. 

 Pyramidella Lam. Shell smooth, polished ; outer lip 



thin ; base of the pillar produced, and marked with 



distinct plaits. 



P. terebellum. Sow. Man. f. 342. 

 Truncatetta Risso. Cylindrical ; turreted ; the apex 



very obtuse ; aperture oval, small, entire ; the lips 



united. 



T. laevigata Risso. Drap. costulata. Zool. 111. pi. 13. 

 pi. 1. f.31. f. 13 18. 



TURBO Linn.* Shell turbinate ; spire short, generally 

 pointed, not longer than the aperture j inner lip 

 flattened, broad. 



littoreus (the common winkle). Sow. Man. 363. (fig. 109. e.) 



Tornatella^ Lam. Animal marine ; shell solid ; body- 

 whorl cylindrical ; spire pyramidical, pointed ; aper- 

 ture contracted above; effuse beneath ; base of the 

 pillar with two strong plaits ; outer lip very thin. 

 T. fasciata. En. Meth. 452. f. 3. 



MELAMPUS. Amphibious Volutes. Obovate, or oval ; 

 the spire generally short, and never longer than the 



* Tuba, Assiminea, and Monatigma, which may probably be sub-genera, 

 I am not acquainted with ; and, as their animals appear unknown, I am 

 fearful of locating them incorrectly. 



f- This sub-genus possibly unites TURBO to Melampus ; it is the only one 

 which has that sort of colouring peculiar to marine shells. 



z 4 



