PELKCYPODA. 61 



PETHICOLA ROBUSTA, Sowerby, Tbes. Conch, vol. ii. 

 pi. 166, fig. 16. Poit Elizabeth. 



PETRICOLA CULTELLUS, Deshayea, Sowerby, Thes. Conch, 

 vol. ii. pi. 166, fig. 5. Port Elizabeth, Ceylon, &c. This 

 species is nearly allied to the American P. pholadiformis. 



PETRICOLA VENTRICOSA, Krauss, Sudafr. Moll. p. 2, pi. 1, 

 fig. 1. Natal coast (Krauss). 



PETRICOLA PONSONBYI, Sowerby, nov. sp., pi. 3, fig. 68. 

 Testa ovata, compressiuscula, solidula, albida, stilis nurne- 

 rosis subrugosis divergentibus radiatim sculpta; umbones 

 obtusi, vix prominentes ; cardo normalis ; pagina interna albida. 



Diam. antero-post 20, umbono-marg. 15 mill. 



Hab. Port Elizabeth. 



An oval species with divaricating sculpture. 



CARDIUM NATALENSE, Krauss, Sudafr. Moll. p. 12, pi. 1, 

 fig. 9. Natal (Krauss), Port Elizabeth. 



CARDIUM (PAPYRIDEA) SEMISULCATUM, Gray = C. ringi- 

 culum, Sowerby, Reeve, Conch. Icon. (Cardium), pi. 21, 

 f. 115; Smith, Keport of the Lamellibranchiata of the 

 ' Challenger,' p. 162. Simon's Bay, 15-20 fath. 



CARDIUM LIMA, Gmelin = C. asiaticum (Brug.), Reeve, 

 Conch. Icon. (Cardium), pi. 18, fig. 90. Natal (Krauss), 

 Port Elizabeth, Nicobar Islands, &c. 



CARDIUM FASCIATUM, Montagu, Sowb. Illust. Index Brit. 

 Shells, pi. 5, fig. 7. Port Elizabeth (large valves). 



CHAMA GKYPHOIDES, Linn. Natal. 



LUCINA COLUMBELLA, Lamarck, Reeve, Conch. Icon. 

 (Lucina), pi. 6, fig. 30. Port Elizabeth. 



LUCINA (DIVARICELLA) LIRATULA, Sou'erby, pi. 2, fig. 63 ; 

 Journ. of Conch, vol. vi. p. 155, pi. 3, fig. 5. Port Elizabeth. 



LORIPES LACTEUS, Linn. = Lucina lactea, Sowb. Illust. 

 Index of Brit. Shells, pi. 5, fig. 17. = Lucina leucoma 

 (Turton) = L.fragilis (Philippi). Port Elizabeth. 



LORIPES GLOBOSUS, Forskael, pi. 4, fig. 91 ; Descrip. 

 Anim. in Itin. Observ. p. 53. Port Elizabeth. 



