I'ELECYrODA. 65 



MODIOLARIA MARMOKATA, Forbes, Sowb. Illust. Index of 

 British Shells, pi. 8, fig. 14. Specimens from Port Elizabeth, 

 hardly distinguishable from the European. This is no doubt 

 the M. cuneata of Gould, said to be South African. Vide 

 Smith in P. Z. S. 1891, p. 393. 



AVICULA (MELEAGRINA) CAPENSIS, Sowerby, pi. 3, fig. 75 ; 

 Journal of Conchology, 1889, vol. vi. p. 158, pi. 3, fig. 10.- 

 Port Elizabeth. 



PERNA DENTIFERA, Krauss, Sudafr. Moll. p. 28, pi. 11, 

 fig. 9. Natal (Krauss). 



PERNA VULSELLA, Lamarck, Reeve, Conch. Icon. (Perna), 

 pi. 5, fig. 21. Natal (Krauss). 



PINNA PERNULA, Chemnitz, Reeve, Conch. Icon. sp. 22. 

 = P. squamifera (Sowerby). - - Mouth of river Knysna 

 (Krauss), Port Elizabeth (Crawford). 



ARCA ACUMINATA, Krauss, Sudafr. Moll. p. 14, pi. 1, 

 fig. 11. Natal (Krauss). 



ARCA (BARBATIA) LACTEA, Linn., Sowb. Illust. Index of 

 Erit. Shells, pi. 8, fig. 8. Port Elizabeth. A well-known 

 British and European species. 



ARCA IMBRICATA, Brug. = A. Kraussi (Philippi), Sudfr. 

 Moll. p. 14, pi. 1, fig. 13. = A. cunealis (Reeve) = A. 

 mutabilis (Sowb.). Natal. 



ARCA (BARBATIA) SQUAMOSA, Lamarck, Hist. Anirn. s. 

 vert. ed. 2, vol. vi. p. 474. Natal (Krauss), West Indies, 

 Red Sea, &c. 



ARCA (BARBATIA) NIVEA, Chemnitz, Reeve, Conch. Icon, 

 sp. 96. Natal (Krauss). Common in the Red Sea, &c. 



ARCA (BARBATIA) OBLIQUATA, Gray, Reeve, Conch. Icon, 

 sp. 80. Natal (Krauss), Port Elizabeth. 



ARCA (SCAPHARCA) NATALENSIS, Krauss, Sudafr. Moll, 

 p. 17, pi. 1, fig. 12. Natal (Krauss). 



ARCA (BARBATIA) SCABRA, Poll., Test. Utr. Sicil. vol. ii. 

 pi. 25, fig. 22. Port Elizabeth, Mediterranean, &c. 



K 



