2 7 2 WORMS. TESTACEA. 66. OSiM 



Modesta. Shell rouBdifh, hoary, with brewn.ifh, reddilh and bluelfh 

 fpots \ fpaces between the rays broad. 

 Inhabits — *-r Regenf. conch, \. tab. c. fg, 55. 

 Shell with 2 filiform bands at the hinge. 



* 

 Principalis Shell purple with a brown margin ; the rays fcaly from 

 the middle and fmooth at the hinge. 

 Inhabits — Regenf. conch. I« tab. 1 2, f. 63* J 



Verfuohn Shell variegated, with pectinate fmooth rays. 

 . Inhabits Regenf. conch. 1. tab. 12, ^.64. 



c* Valves mort gibbous on one fide: 



FlavkanSi Shell nearly equivalve, with 8 ftriate rays* the margin 

 rounded on one iide* 

 Inhabits South Seas. Muf. Lud. Ulr. 531. n. ny. 

 Shell rather oblique, white varied with brown and red^ within 

 white ; the ;ays yellow : one of the ears very wort* 



fafciata-. Shell equivalve, with 20 rough rays, tlie interftices ftriate; 

 ears equal, fmall. 

 Lifer conch, tab. 177. fig. 14. 

 Gualt, teft. tab. 74. E, E* tab, 88, F, F.G. 

 Inhabits the American and Atlantic feas. 



Shell white, pellucid, gaping each fide, very finely ftriate within 5 

 the margin crenate. 



Fragilis. Shell equivalve, with 2$ rays; margin very entire : ears 



acute. 

 Chemn. conch. 7. /. 68. f. 650, 

 Inhabits Nicobar Iflands ; refembles the lad, but is flatter and 



has more rays: fiell thin, brittle, 1^ :nc\ long and about 



half as broad. 



Lima. Shell equivalve, with 2I imbricate fcaly rays, rounded at 



one margin: ears obliterated. 

 Barbut, tab, 8, fig. 5, Petit'. Amb. i. $, f. 4. 

 Argennj* conch, tab. 24, E. Gualt* teft. tab. 88, F. 

 Bonan. recr. 2. f. 71. Muf. Kirch. 2. f.6o, 

 Rumif. Muf. tab. 44. D. Klein oftr, t. 9, f, 35- 

 Knorr Vergn. 6. tab. 34, fig. 3. 

 Chemn. conch % 6. tab. 68, figi 65 1. 



Z. Gualt. teft. tab. 88, fi°. E. 



Inhabits the Mediterranean, Indian and Red fas. 

 Shelly inches long, 2§ broad ; white and rather flat j the number 

 of rays uncertain, the fcales elevated and acute : ears wrinkled. 



Glacia/is 



