TURBO. TURBAN. 211 



bercje : length two-tenths of an inch j breadth the eighth 

 of an inch. 



Western coasts, and Dublin bay. ?,. m. 



44. Turbo Calathriscus. Rough Turban. 



Montagu, pi. 30. f. 5. 



Shell conic, chestmt-brown, finely pointed : spires six, 

 hardly raised, but defined by a fine separating line, strongly 

 grooved both circularly and longitudinally, forming raised 

 tubercles in the intersections, of which there are eight 

 rows on the larger volution, four on the next, and one less 

 on each successive spire, till they are ultimately lost at the 

 tip : aperture roundish-oval, with the margin white ; outer- 

 lip slightly toothed on the inside : pillar-lip not reflected 

 nor perforated : length a quarter of an inch j breadth two- 

 thirds of its length. 



Specimens when the tubercles are worn doxvn may be 

 mistaken for the T. Cimex ; but they are readily distin- 

 guished, by the more conic shape, the slightly toothed in- 

 terior margin of the outer-lip, and the superior number of 

 circular rows of tubercles or dots on the volutions. 



Scotland, and the west of England : rare. 



45. Turbo Punctura. Punctured Turban, 



Montagu, pi. 12. f. 5. 



Shell oval, thin, white, generally glossy, rather pointed : 

 spires five, swollen and well defined, with regular fine cir- 

 cular and longitudinal ribs, so as to resemble fine lace, and 

 punctured in the interstices ; the larger volution with 

 about twelve transverse threads, the second with six or se- 

 ven, the rest with fewer and less distinctly defined : aper- 

 ture roundish oval : the outer-lip thin and plain : pillar-lip 

 a little reflected, with a slight longitudinal groove behind 

 it : length two-tenths of an inch ; breadth one. 



Western coasts, Dublin and Bantry bays. v. m. 



46, Turbo Zetlandicus. Shetland Turban. 



Linn. Trans, xi. pi. 13. f. 3. 



Shell somewhat conic, obtuse, white : spires five, tumid 

 and well defined, furnished with raised spiral lines, winch 

 are crossed with longitudinal ridges rising into angular 



tubercles 





