TURBO. TURBAN. 211 
bercle: length two-tenths of an inch • breadth the eighth 
of an inch. 
Western coasts, and Dublin bay. v. m. 
44. Turbo Calathriscus. Rough Turban. 
Montagu , pi. 30. f. 5. 
Shell conic, dies nut-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 roundisli-oval, with the margin white ; outer- 
lip slightly toothed on the inside : pillar-lip not reflected 
nor perforated : length a quarter of an inch • breadth two- 
thirds of its length. 
Specimens when the tubercles arc worn down may be 
mistaken for the T. Cimcx ; but they are readity 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 Turlan, 
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-15o 
a little reflected, with a slight longitudinal groove behind 
it: length two-tenths of an inch ; breadth one. 
Western coasts, Dublin and Ban try 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, which 
are crossed with longitudinal ridges rising into angular 
tubercles 
