fl 6o WORMS. TESTACEA. 66. Oftrea. 



Japonica* Shell equivalve, a little convex, margined with yellow • 

 upper-valve with faint lines croiling concentric tranfi 

 verfe bands, and 48 elevated ftrix within. 



Chcmn % conch, 7. tab. 62. fg. 596, 



Inhabits fhcres of Guinea and Japan; 5 J inches long and broad: 

 refembles O. Pleuroncftes, but is is coarfer and thicker : ears 

 very finely wrinkled, and furmfhed with a protuberance or 



. Jcnob beneath : l&wef-*ual<ye cchraceous and quite fmooth, 



Ivlagcllani- Shell equivalve, glabrous, with oblong crowded flrix. 

 cai Ckemn. conch. 7. tab, 62. fig. $97' 



Inhabits the Straits of Magellan; refembles O Pleurone&es: 

 JJieil later. tious, not radiate, quite imoth within : upper-vah'i 

 pi ore convex ; lo<wer-<vai-ve flatter than in mpit otljcrs : ears 

 tranfvarfelv itriatc. 



Hyhia)** Shell with 9 or 10 rays, the interfljces longitudinally ftri/o 

 ate: margin repand within. 

 Lister conch tab. 173. Klein Oftrac. i. g.f. 31. 

 Chemn. conch. 7. tab. 63 fig. 601,602. 



Inhabits the Norway feas ; thin : Ivvcei -'valve white, upper-walvi 

 faii£uir.eou : , with angular veins and lines. 



Kadula Shell nearly equivalve, with 12 convex rays croffed by 



crcnatt itria*. 

 Barbut, tab. 8. fig. 2. RumpJ. Muf. t. 44. A. 

 Lifer conch, tab. 174,/V. 1 1 ? tab. 175,/*. 12. 

 Pet.-j. A?nb. ta'J. I 7, f. I. Gualt. test. tab. 74. L. 

 Argent), conch, tab. 24. D. Kr.orr Vergn. 5. /. tyjf.^l 

 Chemn. conch. j.ta'> 63. fig. 599,600. 

 Inhabits the IndiartOcsan : 3J inches long, 2| broad. 

 iS/r// oblong, whit'.*, or varied with white and brown ; (owerm 



waive a httle more convex ; ears wrinkled and furrowed with 



oblique ftria*. 



Lnlrizata. Shell nearly equivalve, fiattifh, with 9 unequal rays im- 

 bricate with fcales. 

 Cbsttttt. conch. 7. tab. 69. f. G. 

 Inhibitb the Red Sea; refembles the lair. 



Shell w.iitiih with purple fpacs, and a utile crenate at the mar- 

 gin ; the rays alternately larger, 



c.' „„.,/ Shell roundifh, with 8 convex chefnut rays: ears roundifh, 

 white with a yellowifh border. 

 Kr.orr Vergn. 2. • tab. 19. f. 4. 



Innabirs Shell if inch long and 2 broad. 



P&ai 



