494 
© Tuber. 
eulatus. 
Ambiguus. 
Crenatus. 
y 
LaGeus. 
Striatulus, 
Uva, 
WORMS. TESTACEA. 80. Turbo. 
Shell generally white, fometimes mixed with brown, or marked 
with traniverfe interrupted ferruginous rings, fometimes 
marked with dots or lines: awhorls with 12—16 ribs, From 
this fheil was procured the violet dye of the ancients, 
Shell dufky with 12 finely tuberculate whorls. . 
On the Northumberland coaf, Pennant, tab. 82. fig, * 111, 
Shell tapering perforated, with contiguous fmooth ribbed 
whorls. 
Inhabits the Mediterranean, and very much refembles T. clathrus, 
except in being perforated: awhorls pale with 2 or 3 ferrugi- 
nous lines; the ribs twice as many as in T. clathrus, 
Shell taper fubcancellate, with contiguous ribbed whorls 
crenate above. 
Inhabits Muf. Lud. ulr. 659. Az. 353. refembles T. clathrus. 
Shell white, nearly an inch long: Jpzre with 8 whorls, the ribs 
rounded and in fome places obfolete. 
Shell taper, with crowded longitudinal raifed ftriz. 
Inhabit: the Mediterranean. — Ginan. adr. tab. 6. fig. 55. 
Shell fize of a barley-corn, {nowy ; the {trie not membranaceous, 
Shell fubcancellate taper, with contiguous whorls and in- 
terrupted varicofe belts. 
Inhabits the Mediterranean: fize of a barley-corn. 
Sbell white, the whorls furrounded with {mall membranaceous 
ftriz, and convex callous wrinkles: aperture obovate; beneath 
. fubangular, 
Shell ovate obtufe, with contiguouous whos!s and imbricate 
longitudinal ftriz. 
Lister tab. 558. fig. 47—49. Pet. Gaz. 1.27 f. 2. 
Bouan recr. and Muf, kirch. 3. fig. 140, 
' Gualt. test. tab. $8. D. Seba muf. 3. tab. $5. fig. 21. 
Knerr bergn, 6. tab. 25. fig. 4 
Born Muf. Cay. Vind. test. p. 340. ign. fig. 2. 
Martini concb. 4. tab. 152. fig. 1439. a, b. 
2. Chemn. conch. G. tab. 113. fig. 947. 
3. Lister tab. 40. Chema. 9. tab. 112. fig. 950. 
Inhabits South America: 1$ inch long. 
Shell white cinereous or chefnut, umbilicate, with about 12 
whorls, the firft thrice as large as the next, the intermediate 
grooves with equal ftriz: aperture r-toothed. 
Corneus. 
