562 WORMS. TESTACEA. 84. Patella. 
2. Chemn. conch. 10. tab. 168, fig. 1630, 1631. 
Argenv. conch. tab. 2, f.5. Knorr Vergn. 6. t. 35, f. 4. 
Da Cofla Conch. tab. 6. f- 9x Favan. concb. 1. t. 4. f. B, 1. 
Inhabits Indian and American feas : an inch wide. 
Shell conic, obliquely truncate, hyaline, with plaits, wrinkles 
and ftriz running towards the margin: Zp a little oblique, 
open on one part and placed in the centre of the crown, 
Neritoidea. Shell ovate, with a fubfpiral tip: lip lateral. 
Lifter, tab. 545. f. 36. Walch Naturf. 10. t. 1. f. 1? 2? 
Meufchen Naturf. 13. tab. 5. fg. 1? 1a? 1b? 
Inhabits : generally found adhering to other teftaceous fub- 
ftances. Shel/t fize of a cherry, whitifh, glabrous, the older 
ones rough with a few tranfverfe wrinkles: crowa and inter- 
nal valve lateral: inbaditant red. 
Sinenfise ^ Shell fubconic, fmooth: lip fomewhat lateral. 
Lister, tab. 546. fig. 39. Arg. conch. t. 2, F. 
Gualt. tefl. tab. 9g. X. Bonan rec. Muf. Kirch. 1. f. 12. 
Born Muf. Caf. Vind. tefl. p. 414. vign, f: a, b. 
Martini conch, 1. tab. 13, figs 121--124. 
2. Knorr Vergn. 6. tab. 22. f. 1. à 
Inhabits tne Mediterranean, Atlantic and Indian Seas. 
She/l very thin, pellucid, glabrous, broader than it is high, with 
an acute fubflexuouscrown: /p concave, depreffed: generally 
white with brown fpots or rays, fometimes chefnut fpeckled 
with minute grey dots, 
Porcellana Shell oval, with a recurved tip: lip placed behind and flat. 
Lister, tab. $45. f. 34. Adanf. Seneg. t. 2, f. 8. 
Runpy. Muf. tab, 40. O. Mart. conch, t. 18. f 27, 28. 
Chemn, conch, 9. tab. 124. f, 1082. 
Inhabits India and Goree, Shell convex, within white, the 
outfide red, with white fcaly {pots and traníverfe undulate 
blue lines: probably a Nerita. 
fornicata. Shell oval, obliquely recurved behind: lip placed behind 
and concave. 
Lister, tabe 545: figs 33» 35- Arg.conch. t. 2. N. 
Muf, Gottwald. tab. 40. fig, 275. 8, b. 
Knorr Vergn. 6. tab. 21. fig. 3. 
Walch Naturf. 10. tab. 1. fig. 3, 4. 
Martini conch. 1. tab. V3. fig. 129, 130. 
. Kamm, Cab, Rudolf. p. 25. t. 2. f. 9. 
. Schrat. Einl. in conch. 2. tab. 6. f. 10. 
. Lister, tab. 545. f. 37. Klein ofir. t. 8. f. 8. 
« Knorr Vergn. 6, tab. 11, f. 5? 
un Po) l3 
Inhabits 
