WORMS. TESTACEA. 62. Venus. 219 



fyferai Shell fomewhat heart-fhaped with tranfverfe remote reflec- 

 ted grooves ; the margin crenulate. 

 Lifter, conch, tab. 277, 278. 285, a* 

 Bonan. recr. $,ftg* 348 ? Muf. Kirch. 2. .fig. 103. 

 Gualt. teft. tab. 88. D. Klein oftr. tab. 10. fig. 48, 49, 

 KnorrVergn. 4. tab. 24. fig. 3 t t. z%.f. 3. 

 Gronov. Zooph. tab. iS.fg. 8. 

 Born. Muf. Caf. Vind. teft. tab. 4. fig. 9. 

 Chemn. conch. 6. tab. 27. fig. 279—281 ? /. 28./. 287—294. 



2, Lister cone. tab. zSc.fg. 117. E. 



Inhabits the American Ocean, rare and valuable : varies in colour ' 

 and marks : ribs thin and (harp. 



Majana. Shell brittle glabrous, with a few tranfverfe ftrias, 

 Bonann. Muf. Kirch. 2. //£. 124, 1 25, 

 Inhabits Z?rtf/z/ ; ochraceous varied with black. 



Excavata, Shell lentiform, tranfverfely ftriate, with a deep heart- 

 fhaped depreffion behind the beaks ; flat fide broad. 

 Scbraet. Einl. in conch. 3. tab. S.fg. 10. 



Inhabits refembles V* finuata, but the ilrias are thinner and 



acute, forming wrinkles on the anterior and pofterior fides; 

 colour brown yellow or whitifh-afh ; the flat margin fcaly. 



Iferrucofa. Shell with membranaceous tranfverfe ftriate grooves forming 



tubercles towards the outer margins ; the margin 



crenulate. 

 Donovan 's BritiJIi Shells, ii. tab. 44. 

 Borbafe Cornwall, tab. 23, fig. 31. 

 Pennant Brit. Zool' tab. $\.fig. 48. 

 Ha Costa Brit, conch, tab. \z.fig. \. 

 Adans Seneg. tab. 1 6. fig* I. Gualt. teft. tab. 75* H, 

 Peti<v. GazoJ>h. tab. 93. ftgi 1 7. Lifter conch, tab* 284. 

 Oj Argenville conch, tab. z\.fig. £©» 



Born Muf. Caf. Find. teft. tab. 4. f%. 7. 



Chemn. conch. 6. tab. zg.ftg. 299. a, b. 300. 



Inhabits the Mediterranean, Enghfa and Antilly coafls : thick, 2 



inches long and as much broad ; fometimes marked with a 



few brown fpots and rays. 



Lapicida. Shell white, longitudinally ftriate forwards and tranfverfely 

 backwards. 

 Chemn. conch. 10, p. 356. tab. ijz.fg. 1664. 1665, 

 Inhabits American IJlands. 



Divergent. Shell white, with very fine crowded divergent ftrix. 

 Chemn. conch. 10. tab. ijz.ftg. 1666, 1667. 

 Inhabits American I/lands, 



E e 2 Cafina* 



