36 MARINE SHELLS OF SOUTH AFRICA. 



CERITHIUM FOVEOLATUM, Sowerby, nov. sp., pi. 1, fig. 27, 

 -Testa minima, acuminata, sordide albida; spira acuminata; 

 anfractus 10, leviter convexi, sutura leviter impressa sejuncti, 

 cancellati, profunde seriatim foveolati ; anfractus ultimus 

 curtus, ad basin leviter contractus ; apertura breviter 

 expansa ; columella leviter contorta. 



Long. 4 millirn. 



Hab. Port Elizabeth. 



A little dull white species, the surface of which is 

 deeply punctured. 



CERITHIDEA DECOLLATA, Linn., Thes. Conch, vol. ii. pi. 186, 

 tig. 276. Port Elizabeth (Crawford), Natal (Krauss), 

 Zanzibar, Madagascar, Mauritius, &c. 



TRIFORIS CATTTERETENSIS, Hinds, Zool. Toy. Sulphur, 

 Moll. p. 29, pi. 8, tig. 17. -Natal coast (Krauss). 



TRIFORIS TERVERSUS, Linn., Sowb. 111. Index Brit. Shells, 

 pi. 15, fig. 10. Port Elizabeth (Crawford). This well- 

 known European species is of very wide distribution. 



TRIFORIS CINGULATUS, A. Adams., Proc. Zool. Soc. 1851, 

 p. 279. Cape of Good Hope. 



LITTORINA KNYSNAENSIS, Krauss, Philippi, Conch, vol. xi. 

 p. 196, pi. 4, fig. 4. Port Elizabeth. This is a variable 

 species and includes L. africana, Krauss. 



LITTORINA NATALENSIS, Krauss, Philippi, Abbild. u. 

 Beschr. n. Conch, vol. ii. p. 160, pi. 3, fig. 4. Algoa Bay 

 and Natal coast (Krauss). 



LITTORINA DECOLLATA, Krauss, Phil. Conch, vol. ii. 

 p. 196, pi. 4, fig. 3. Natal coast (Krauss). 



LITTORINA AHENEA, Reeve, Conch. Icon. sp. 15. Port 

 Elizabeth. Of very wide distribution in the Atlantic, 

 Pacific, and Indian Oceans. 



LITTORINA ZIGZAG, Chemnitz, Reeve, Conch. Icon. sp. 57. 

 Natal coast (Crawford). 



LITTORINA ASPERA, Philippi, Proc. Zool. Soc. 1845, 

 ]. 139 ; Tryon, Man. of Conch, vol. ix. pi. 44, figs. 80-85 &c. 



