WORMS. TESTACEA. 66. Oftrca, 
261 
a 
Shell nearly equivalve, with 6 convex fmoothilh rays an 
(Iriaie acrols. 
Rumpf. Muf. tab. 44 0 . histep conch, tab. 171. 
Bonan. recr. and Wtuf Kirch, 2 . fig. 9, 10. 
Peti-v. amb. aq. tab. 2. fig, 10. 
Gualt, left. tab. 74 C. /frgen-v conch, tab. 24. C, 
Chetnn. conch. 7. tab. (i2. fig. 598. a, b. 
2 . Gualt. test, tab- 73 fg. E ? 
Inhi.bits India i about ij inch long and an inch broad. 
Shell while, or white fpotted with brown, or red fpotted with 
while; the tnmfvcrfe Itria: placed at adillance from each other: 
margin repaid. 
^‘’»‘o/a. 
Shell ronndilh with convex rays, the outer one? finely ftriate 
longitudinally ; margin deeply crenate. 
Inhabits Lister conch, tab. 170.9%. 7. 
pars traniverfely ftnatc. 
Shell ovate with very numerous and fine ftriae 1 the margin 
crenatp wiihin. 
Lift L An. Angl. tab. 5. ftg, 31. Conch, tab, 172. 
Inhabits pritlfs} ^eas'. Ihgll yaried with fafffon. 
Shell oblong with fcaly pays, the interftices broader and 
marked with perpendicular ftrias 
Icih-dbiXs— Lister conch- tab, 184 fig. 21. 
Shell varied with angular lines and ipots : ears wrinkled per- 
pendicular. 
Shell roundifh, with 18 rays imbricate with fcales. 
Inhabits ■ Lister conch, tab. 192.9%. 29. 
Shell nearly f inch long ; ears ftriate traniverfely. 
Shell with 20 fmooth rays, the interftieps tranfverfely ftriate. 
margin crenate. ’ 
Donovan’s Brit. Shells, \. tab. 12, 
Pennant Brit. Zool. iv. tab. bo. jig, 60, 
Borlafe Ccrnvsall. tab, 2%. fig. 1 8, 21, 22. 
Lijier Anim. Angl p. 18;. tab, ^.fig- 30- 
Inhabits Britijb, Shores ; 2 inches long and as much broad. 
Shell thin, generally pale red, fomctijnes fpptted v«th white and 
black : ears transverfely ftriate. 
Shell flattened with 18 fmooth rays, the interftices cancellate- 
Inhabits Banan. recr. and Muf. kircb. 2. fig. 6. 
Shell pale yellow, white, fea-green, blackifh or red-; ears tranfr 
verfely ftriate. 
