270 WORMS. TESTACEA. 66. Oftrea. 



Chetnn, conch. 7. tab, 67. fig, 6tf$ 648. 



Inhabits Tranquebar : fometimes of one colour, which is moftly 

 orange, fometimes varied with undulate brown red or cine- 

 reous fpots : upper-valve more convex. * 



Sauciata. Shell white with purple fpots and numerous unequal rays: 

 the margin crenate. 

 Inhabits the Red Sea, Chemn. conch, 7, tab. 69, H. 



Crenulata, Shell oblong, with undulate rays and ftrix, and tranfverfe 

 interrupted bands : margin crenulate. 

 Inhabits Lifter conch, tab, 175, f, 1 2. a. Small. 



Innominate Shell roundifh, fpotted, with deep grooves very finely ftriate 

 tranfverfely : margin crenulate. 



Inhabits Lifter conch, tab. ij$,f 12. b. Small. 



One of the can hardly vifible, 



Rufefcens, Shell roundifh, pale rufous, with 24 rays » the ears with 

 decufTate ftriar. 

 Inhabits Lifter conch, tab. 180, f. 17, Middle-fizcd. 



Squatnata, Shell roundifh, with thick rays furnifhed with diftant pa- 

 rallel fcales, and prickly at the fides. 



Inhabits Lifter conch, tab, 183,/}^. 20. 



Shell convex, fpotted; the margin crenate, 



Anonyma. Shell rather oblong, with narrow fcaly rays, the interfaces 

 broader and ftriate perpendicularly: ears with perpen- 

 dicular wrinkles. 



Inhabits Lifter conch, tab. 1 84, f 2 1 . 



£ZW/ varied with angular lines and fpots, 

 * ••' 



Dceemradi. ^ ne ^ flattened, with 10 fmooth flat unequal rays: ears 

 ata ^ tranfverfely filiate 



Inhabits Lifter conch, tab. 1 88, f. zG, 



■r ■ Shell thin, with deprefTed fcaly rays: ears fhort. 



Rumpf. Muf tab. 44, fig. C. 

 2, Regenf, conch. I. tab. 10. fig. 45. 

 Inhabits India and the North Seas, 



Shell bay, or cinereous fpotted with black, fometimes white or 

 carmine or pale orange. 



Vaknii. 



Shell with 20 rays and tranfverfe femilunar bands. 

 Inhabits India. Valent, abh, tab. 13, f, 2. 

 Shell red : refemblcs O. maxima, but the ears arc unequal, 



Media 



