228 WORMS. TESTACEA. 62. Venus. 
Gualt. test. tab. 75. M. Knorr Vergn. 4. tab, 24s fig. 2, 
Chemn. conch. 6. tab. 33. figs 353» 354- 
Inhabits Mauritius I/fland; refemoles V. lata. 
Shell marked with brown rays {pots and angular lines: anterior 
{lope excavated with an oblong gape. 
Opimae Shell thick convex, with an ovate anterior flope and ovate 
heart-fhaped one behind; hinge with only 3 teeth. 
Chemn. conch. 6. tab. 34. Jg. 355—357- 
Inhabits /z4/a: fometimes pale with darker rays, fometimes 
white with blueifh fpots and clouds, fometimes grey with 
darker fpots and clouds. à) d 
Triradiata. Shell convex, grey; with 3 blackifh-blue rays: pofterior 
flope elongated, with tumid lips. 
Inhabits Zraaquebar. Chem, conch. 6. tab. 34. fig. 558. 
Nebulefas Shell ochraceous with cinereous and blucifh fpots: anterior 
flopé oval with blueifh lips, pofterior flope ovate 
blueith. 
Chemn, conch. 6. tad. 34. fig. 359—361. 
Inhabits Tranquebar: generaily marked with 4 rays varied with 
cinereous and white. uy 
Contemta? Shell thick triangular equilateral glabrous, with convergent 
beaks: primary tooth of the hinge crenulate. 
Chema, conch. 6. tab. 34. fig. 362, 363. 
Inhabits Ma/abar ; minute. Beaks fometimes white, fometimes 
reddish or dufky, foinetimes marked with a fanguincous M. 
Japmica Shell oblong-ovate, inequilateral, with crowded tranfverfe 
{triz at the fides: pofterior impreflion ohlong-ovate. 
Bonann. Muf. kirch. 2. fig. 134? 
Chemn. couch. 6. tab. 34. fig. 364. 
Inhabits Fapan: yellowith or milk-white with purple triangular 
charagters and angles: probably not of this divifion, ; 
Striata, — Shell ventricafe, angular at the anterior part, with tranfverfe 
thick fmooth {lightly arched ftriz ; pofterior impreflion 
heart-fhaped. -— ! 
Boran. recr. 2. fig. 377+ Muf. Kirch. 2. fig. 115. 
Chemn. conch. 6, tab. 56. Jig. 385. 
2. Chemin. conch, 6. tab. 36. fig. 386. 
Inhabits Jzdia; grey-white with brown rays clouds and fpots: 
anterior flope ovate with plaited lips. | dr 
Textile. 
ee M 
