WORMS. TESTACEA. 62. Venus. 



227 



Cor hi cut a* 



Flammea. Shell tranfverfely ftriate, the back glabrous: anterior Hope 

 very broad with brown lines: impreflion behind the 

 beaks heart-fhaped with brown lines. 

 Schrait. Einl. Conch. 3. p. 200. tab. %-fig- 12. 

 2. With 3 brown rays. Schrat. conch, p. 200. n. 146.- 



Inhabits the Red Sea, refembles the laft, but the knob is blueifh 

 and the fhell is white with cinereous lines fpots and marks. 



Shell triangular fmooth truncate each fide with yellowifh 

 rays: flope heart-fhaped: margin very entire. 

 Knorr forgn. 5. tab. 15. fig. 2 and 6. /, 10./. 5. 

 Chemn. conch. 6. tab. 3l*fg> 3 2 ^« 



Inhabits the At/antic and American Seas : anterior flope pale 

 chefnut with a large gape. 



* Slnuofa. Shell fomewhat triangular thin convex, with a deep obtufe 

 indentation in the middle of the front. 

 Donovan s Britijh Shells, ii. tab. 4.2. fig. 2. 

 Pennant Brit. Zool. iv. tab. 55»fig» 5 I. A. 

 Found at Weymouth. 



Co 



veans. 



Herma- Shell triangular, quite frnooth, olivaceous obfcurely banded; 

 phrodita. within white or blueifh : anterior flope heart-fhaped, 



pofterior ovate. 

 Martin. I. Manigf. I. tab. \.fig. I. 2. 

 Chemn. conch. 6. tab. 31. fig. 327-^329. 

 Inhabits rivers of Guinea ; very rare. 



Shell thick coarfe, with convergent beaks, and crenate teeth in 

 the hinge. 



Shell green, within white, with tranfverfe unequal mem- 

 branaceous ftriae : margin acute. 

 Rump/ Muf. tab. 42. fig. H. 

 Chemn. conch. 6. tab 9 32. jig. 336, 



Inhabits rivers of Ceylon : 2 \ inches long and 3 broad j with an 

 oblong gape on the anterior flope; 2 of the hinge-teeth cleft. 



Cajla. Shell gibbous fnowy, the anterior part convex and with the 



infide pale violet ; anterior flope roundifh, pofterior 

 heart-fhaped : margin very entire. 



Chemn-. conch. 6. tab. l^.fg. 346, 



Inhabits India', on the anterior flope is a large oblong gape : 

 anterior tooth of the hinge in eacji valve crenulate. 



AJinis, Shell thin glabrous convex, white varied with brown pofte- 

 rior Hope elongated, with oblique tumid lips : hinge 

 with 4 teeth. 



F f 2 Guah. 



