20 2 
TURBO. TURBAN, 
ture behind it like an incipient perforation : length three- 
eighths of an inch ; breadth two. 
Mr. Dilhvvn, in referring to the plates of Da Costa and 
the Dorset Catalogue, has quoted the figures from 1 to 3, 
including within this number the Voluta Tornatilis. 
English and Irish coasts, on Fuci. v. v. 
21. Turbo nivosus. White Turban. 
Montagu , p. 326. 
Shell rather slender, tapering to a somewhat obtuse 
point, smooth, glossy-white: spires five or six, much 
rounded and deeply divided by the line of separation: aper¬ 
ture roundish-oval; the inner-lip and pillar quite smooth 
and even : length about a line ; breadth not half as much. 
The specimens which we have collected as this obscure 
species, very much resemble the T. Ulvas, but are about 
half the size, and are distinguished by the swollen and 
rounded volutions, with the pillar-lip not in the least re¬ 
flected, nor forming any kind of perforation behind it. 
Western coasts, and Dublin bay. v. m. 
22. Turbo ruber. Red Turban. 
■ Linn . Trans, iii. pi. 13. f. 21, 22. 
Shell conic, smooth, glossy, red-brown, pointed: spires 
five, rounded, divided by a fine line: aperture somewhat 
orbicular, not margined, a little reflected on the pillar: 
length the eighth of an inch * breadth about a third of its 
length. 
It maybe distinguished from the smaller specimens of 
1. UIvie, by the swollen and well rounded volutions, their 
number, and its glossy surface. 
J arietg Quite white, and so transparent that the whole 
ot the pillar may be seen through the shell. 
Western coasts, and Dublin bay. v.v. 
23. Turbo vitreus. Glassy Turban. 
Montagu , pi. 12. f. 3. 
Shell thin transparent, white, smooth: spires five, much 
i on nded and we 1 11 (]c Sned, ending rather obtusely : aperture 
oval, contracted at one end; inner-lip a little thickened, 
but 
