MARINE MOLLUSCA. 615 
Family PLANAXIDAE. 
226. Planaxis ineptus, Gould, 17, 40,a, XX, 41,/X. X. 
The Maldive specimens are a little larger than the dimensions given by Gould, being 5} mm. 
in length. Most of them also exhibit a purplish stain on the columella which is not referred to 
in the original description. There are generally three principal colour lines upon the body-whorl 
—one above the periphery, one below it and the third still more anterior. 
Family LITTORINIDAE. 
227. Littorina glabrata, Philippi, 33,0, 37,X. XI, XV. 
228, Littorina scabra, Linn. 37, X. XV. 
229. Littorina undulata, Gray, 37, XY. XI, XV. 
Family SOLARITDAE. 
230. Solarium modestum, Philippi, 40,0,/. V. 
231. Philippia cingulum, Kiener, 40,0}, ///. II, IX. 
Family HIPPONYCIDAE. 
232. Mitrularia cicatricosa, Reeve (Calyptraea cicutricosa, Reeve, 37, XJ.) IX. 
233. Mitrularia equestris, Linn, (Calyptraca equestris, Reeve, 37, XJ.) IX. 
234. Hipponyx danieli, Crosse (Capulus danieli, Crosse, 11,6). ILI—V. 
235. Hipponyx australis, Lamarck, 41, V///. 
; Family CAPULIDAE. 
236. Thyca crystallina, Gould (Hipponyx crystallinus, Tryon, 41, ViZ/.) VIII. 
Family XENOPHORIDAE. 
237. Xenophora indica, Gmelin, 41, ////. (Phorus indica, Reeve, 37,7.) V. 
Family VANICOROIDAE. 
238. Wanicoro cancellata, Lamarck, 41,V///., 40,6,V. IX, XIII. 
Family NATICIDAE. 
239. INatica robillardi, Sowerby, 40,d. XII, XV. 
240. Natica euzona, Recluz (Pl. XXXV. fig. 22), 36 (WV. picta, partim, Reeve, 37, 7X. 
NV. decora, Philippi, 33,a). VII. 
The operculum of this species is shelly, white, concave externally, shining except in the middle 
where there is a dull opaque thickening. The outer curved side has a thickened edge, within 
79—2 
