WORMS, TESTACEA. 69, Pinna, 303 
Adan). Seneg, Y. tab. 15. fig. 5. Gualt. test. tab. 79, C, 
Ginann. Adr. 2.tab, 25. fig. 166. 
Chemn. conch. 8. tab. 88. fig. 773. 
2. Rumpf, Muf. tab. 46. fig. 11. Gualt. tefl. tab, 81. A, 
Petiv. Amb. ag. tab, 19. fig. Ó. j 
Chemn. conch. 8. tab, 88. fig. 774. 
Inhabits the American and A:lantic Oceans : 12—16 inches long, 
4;—8 broad: fhell red, with 6--8 grooves. 2) Inhabits hg 
{ndiqn and Red Seas; black with hardly vifible grooves. . 
Pettinatae, Shell longitudinally ftriate half-way ; ene file flightly wrin- 
kled tranfverfely, 
Gualt. tefl. tab. 79. A. Argenv. Zoom, tab. 5. N? 
Chema. conch. 8. tab, 87. fig. 770. 
2. Chemn. conch, 8. tab. 87. fig. 771. 
Inhabits the Indian Ocean; 3 inches long and 4 broad: fhel} 
triangular, horny. 2) 4% inches long, 2; broad: lefs, thin- 
ner and more raje. ; e re d 
Nebilis, Shell ftriate, with caniculo-tubular fubimbricate fcales. 
Bonan recr. 2. fig. 44. Muf. Kirch. 2. fig. 20. aa 
Gualt, teft. tab, 78. B. Seba Muf, 3. tab. gt, fig. 3 
Knorr delig. nat tab. B. v. fig. 3. — "E 
Knorr Vergn. 2. tab 26, f.t. Lister, tab. 373. 
Chemn. conch, 8, tab. 89. fig. 775, 776. t 
2. Lifter. tab. 372. Chemn. conch. 8. t, 89. f. 777. 
3. Knorr Vergn. 2. tab. 26. fig. 2. TRUE 
Chemn. conch, 8. tab. 92. fig. 735 
4« Argenv. conch. tab. 22. fig. Fo ~ 
Chemn. conch. 8. tab. 86. fig. 769. 
Inhabits the Mediterranean, Adriatic and American feas ; 71 inches 
long, 3i broad: hel] brown, the exterior margin rounded} 
feales larger towards the edges and nearly $ an inch long: 
one half of the valves ribbed, thé other with traníverfe wriri- 
kles, which tawards the broader part are croffed with ftriz. 
I 
@ Muricatae Shell ftriate, with concave ovate acute fcales. 
E Donovan's Brit. fheils, i. tab. 10. 
P. fragilis. Pennant Brit Zool. iv. tab. 97, f. 80. 
Da cofla Brit, conch. tab. 16. f° 3. 
Barbut, tab. 12, f.2. Rumpf. Muf. tab. 46. M, 
Petiv. Amb, tab. Yo. f. 7. Gualt. tell, te 79, F: 
Lifter conch. tab. 370? 371? 
Chen. conch. 8. tab.g0. fg. 779. - 
Schrat. einl in conch. 3. tab. 9, f. 17e 
Inhabits European and Indian {eas : 3—g9 inches long and 1—3 
' broad: shell thin, brittle, pellucid, horny ; the outfide with 
longitudinal ribs rough with rows of {mall prickles, — D 
Retundata 
