WORMS. TESTACEA. 66. Oftres. 267 
Lifter conch. tab. 190, 191. 
Seba Muf. 3. tab. 87. fig. 15. 
Kmorr Vergu. 2. tab. 3. fig. 2? 32 
Cena. conch, 7; tab. 67. fige 646. 
Schret. Eixl. in conch. 3. tab. 9. fig. 3- 
2. Knorr Vergn. 5. tab. 28. fig. 4. " 
Inhabits northern feas of Europe: 24 inches long and broad. 
Shell gaping, generally variegated with {pots and other marks : 
rays acute, fometimes rounded: margin repand and toothed 
within: ears with decuflate wrinkled ftriz, the larger one 
emarginate and fpinous under the incifure, 
Gibbas Shell equivalve, gibbous, with 20 glabrous rays. 
Brown Famaic. tab. 40. f. 1o. Gualt. test. t. 73, F. 
Regenf. conch. X. "tab. V. fig. 11. f. 2) f. 16, 17. 
Knorr. Vergn. 1. 145.18, f. 2, 62: 2. t. 5. f. 4. 
Chema. conch. 7. tab. 65, fig. 619, 620. 
2. Lifier Concb. tab. 182. f. 19. 
Inhabits the American and Atlantic feas. 
S/yll convex each fide, red with fomeiimes a few white fpots, 
and marked with fine crenate longitudinal ftrie ; margin cre- 
. nate; egrs nearly equal. 
Sufeata, Shell white with flefh-colour fpots; the rays glabrous, 32 
on the lower-valve and 25 on the upper. 
Born. Muf. Caf. Vind. tefl. tab. 6, fig. 5, 6. 
Chemn. conch, 7. tab. 63. fig. 603, 604. 
Inhabits fhores of Malabar; about 1$ inch long and fomething 
broader: margin plaited, crenate : /ower-valve with an emar- 
ginate fpinous ear, upper-valve flattened. 
Hifrionica, Shell thin, flattened, pellucid, with very fine tranfverfe 
wrinkles and 11 rays. 
Bonan.recr. and Muf. Kirch. 2, fig. 14. 
Kuorr Vergn. 4. tab. 12,-fig. 13. 
Born Muf, Caf. Vind. tell. p. 97, vign. fiz. 6. - 
Chemn. conch. 7, tab. 65, f. 614. 
lnhabits Shell {potted with red, white and black: rays 
waved : ears nearly equal, A 
Jflazdica, Shell orbicular, with purple circles and about 100 rays. 
It. W goth. tab.5. fig. 7. ‘Lifter, tab. 1057. f he 
Gualt. test. tab. 736 R. Seba Muf, 3. 1, 87. f. 2 
Knorr delic. tab. B. it. fig. 3, 4. 
Knorr Vergn, 1. tab. 4, fige 1. te 5, fu 2, & 6, t. TGs fT. 
Spengler Schreb. Naturf. Y. tab. 5, fig. g. 
Chem, conch, 7. tab, 65. fig. 615, 616. 
L1z Inhabits 
