Matadoa. 
Succindas 
Compreffa. 
Aaltralis. 
Gigantea, 
^ Tigerina. 
WORMS. TESTACEA. 62. Venus. 230; 
Shell triangular, white or yellow, with about 4o tranfverfe . 
parallel grooves. 
Inhabits Sexegal. Adans Seneg. tab. 18. fig. 5. 
Refembles V, tripla: about 1 inch long. 
Shell heart-fhaped with tranfverfe remote excavated grooves; 
the margin crenulate. 
Inhabits Mant. 2. 5. 546. 
Sheil about the fize of the little finger, with 14 grooves: pof- 
terior flope ovate impreffed, anterior flope with a jagged 
fent. 
Shell flightly heart-fhaped, very much compreffed, traní- 
verfely grooved. 
Inhabits Mant. 2. 5. $46. 
Margin very entire: flopes linear and a little jagged. 
Shell heart-fhaped polifhed, white. with brownifh charac- 
ters; the margin very entire. . 
Chemn, conch. 10. tab. 171. fig. 1662. 
2. Martyn univers. Conchol. tab. 40? 
Inhabits the Southerz Ocean. 
Shell ovate livid, with numerous interrupted blueifh rays: 
pofterior impreflion ovate. 
Chemn. conch. YO. tab, 171. fig. 1661. 
Favann. Conch. tab. 49. fig. 91. 
Inhabits fhores of Czylos and Florida. 
B. Orbicular. 
Shell lentiform with crenate decuffate ftriz: pofterior flope 
imprefled ovate. 
Lifler. tab. 337. Adans. fóneg. tab. 16. fig. 3. 
Bonan. recr. 2. fig.69. Muf. Kirch. 2. fig. 70. 
Rumpf. Muf. tab. 43. H, Gualt. teft. tab. 77. A. 
Petiv. Amb. aq. tab. 18. fig. 9. 
- Argenville conch. tab. 2 1. figs E. 
Byte. app. tab. 13. fig. 44. 
Knorr. Vergn. 2. tab. 4. fig. Y. t. 3. f. 2. and 6, 1.37. f. 2. 
Chemn. conch. 6. tab. 37- Jigs 390, 391. 
2. Knorr Vergn. 4. tab. 5. fig. 2. 
2. Venus orbicularis. Sy/. Nat. x.p. 688. 
— Inhabits American and Indian Ocean ; large. 
7 
" { Shell 
