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Show 1871.] MR. E. A. SMITH ON WEST-AFRICAN SHELLS. 735 primi 2 (nucleus) globosi, cceteri plani, infra suturam fascia diaphana ornati; sutura valde distincta ; apertura pyriformis; columella uniplicata. Long. 6| mill., diam. 1|. Hab. 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, subplani, indistincte longitudinaliter striati, infra suturam pellucida ornati, et infra medium sulco lineari cincti; apertura pyriformis ; columella leeviter dentata. Long. 5 mill., diam. 2. Hab. 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, elongata, pallido-fulva; anfract. 8, primi (nucleus) perconvexi, cceteri planiusculi, longitudinaliter costati, inter costas striati, infra suturam fascia ornati; apertura subquadrata, parva; columella uniplicata. Long. 5| mill., diam. 1§. Hab. Whydah. 70. EULIMA DISTORTA ! (Desh.) Philippi, Moll. Sicil. i. p. 158, t. 9. f. 10. Hab. 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, pl. 11. f. 24. Hab. Whydah. " China Sea" (Ad. 8c 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 thickened. 72. TURRITELLA CANDIDA, Reeve, Conch. Icon. v. sp. 38. Hab, West Africa. " !" (Reeve). 73. TURRITELLA ANNULATA, Kiener, Coq. Viv. p. 20, pl. 13. f. 1. Hab. West Africa. PROC. ZOOL. Soc-1871, No. XLVIL |