1871.] MR. E. A. SMITH ON WEST-AFRICAN SHELLS. 735 



primi 2 (nucleus) globosi, cceteri plant, infra suturam fascia 

 diaphana ornati ; sutura valde distincta ; apertura piriformis ; 

 columella uniplicala. 



Long. 6i mill., diam. \\. 



Hah. Whydah. 



A very slender species, of a pure white colour, with the upper 

 part of the whorl girdled with a pellucid zone. 



68. Odostomia sulcifera, sp. nov. (Plate LXXV. fig. 19.) 



Testa parva, alba, polita ; anfract. 6 ; primus tubercularis, cceteri 

 subplani, indistincte longitudinaliter striati, infra suturam zona 

 pellucida ornati, et infra medium sulco lineari cincti ; apertura 

 pyriformis ; columella Iceviter dentata. 



Long. 5 mill., diam. 2. 



Hah. Whydah. 



The apex is not acute, as in the Mediterranean O. conoidea, the 

 spire is not so conical, and the columellar tooth is small. 



69. Turbonilla costifera, sp. nov. (Plate LXXV. fig. 18.) 



Testa imperforata, elonyata, pallido-fulva ; anfract. 8, primi 2 

 (nucleus) perconvexi, cceteri planiusculi, longitudinaliter valide 

 costati, inter costas striati, infra suturam fascia diaphana 

 ornati ; apertura subauadrata, parva ; columella uniplicata. 



Long. 5i mill., diam. 1|. 



Hub. Whydah. 



70. Eulima distorta ? (Desh.) Philippi, Moll. Sicil. i. p. 158, 

 t. 9. f. 10. 



Hob. Whydah. "Teneriffe" (M' Andrew). 



Only differing from distorta in being nearly straight and a little 

 broader. 



71. Leiostraca bivittata, H. & A. Ad. Gen. Moll. i. p. 239. 



Eulima bilineata, Ad. & Reeve, Voy. Samarang, p. 72, pi. 11. 

 f. 24. 



Hub. Whydah. "China Sea" {Ad. # Reeve). " Island of Negros, 

 in coarse sand and gravel, 7 fms." (Cuming). 



The shells referred to this species are generally smaller, a trifle 

 broader, and the columella somewhat straighter and more thick- 

 ened. 



72. Turritella Candida, Reeve, Conch. Icon. v. sp. 38. 

 Hob. West Africa. " V (Reeve). 



73. Turritella annulata, Kiener, Coq. Viv. p. 20, pi. 13. 

 f. 1. 



Hab. West Africa. 



Proc. Zool. Soc— 1871, No. XLVII. 



