ILLUSTRATIONS. XI 



PAGE 



Pecten {Ghlamys) Farreri, x\.^\) 149 



Species of 4«owia, (Plate IX.) 154 



Rhytida duplicata, n.sp 155 



Endodonta {Charopa) transenna, n.sp 156 



New species of Gastropoda from the Persian Gulf, Gulf of Oman, and 



Arabian Sea. (Plate X.) 169 



Conus (Coiiorbis) Coromandelicus (Smith) and G. dormitor (Solander) 171 



Tripho7-a princeps, n.s,^ 174 



Triphora Smithi, Marginella {Gryptospira) robusta, n.spp. . . . . 175 



Murex (Ptej'onotzis) exquisitus, n.sp 176 



Yoldia Keppeliana, Cardita umbonata, n.spp 177 



Valuta Brazieri^ Cox 178 



Xanthomelon Bednalli, n.sp 182 



Opisthostoma Shelfordi, Sadongense, Picsingense, n.spp 189 



Land Shells of Gisser Island. (Plate XI, coloured.) 191 



Anatomy of Siliqua and Ensis. (Plate XII.) 196 



Tomigerus Icevis, Bockai, corrugahts, n.spp 197 



Planispira {Trachiopsis) Blackiana, ^.s,^ 207 



Opisthosiphon Bahamensis (Sh.) 209 



Geomelania Jamaicensis, Pfr., and G. Jarvisi, n.sp 225 



Dyakia perstriata, D. euconus, n.spp 227 



Achatina Morrelli, n.sp 244 



Cyclophorus, with bifurcate tentacle 255 



Aulopoma, scalariform specimen 264 



Styracoteuthis orientalis, n.sp. 275 



Tellina Ascensionis, T. prismatica, Veims Keppeliana, Diplodonta 



auriculata, n.spp 280 



Protoma pulchra, Conus fuscolineatus, n.s^-p 281 



Olyptostoma Newberryanum, showing internal septa 283 



Animal of Helix aspersa, showing dart in body-cavity 284 



Genitalia and teeth of Gorilla, Thersites, Trigonephrus, n.gen. 



(Plates XIII, XIV.) 290 



Anatomy of Cassidaria rugosa 293 



A.ndi.tova.Y oi Cassidaria rugosa. (Plate XV.) 298 



Vivipara densestriata, Gleopatra Morrelli, Unio Zambesieiisis, n.spp. 300 



New South African Land Shells. (Plate XVI.) 304 



Diagram Map of Crete 307 



Pecteyi maximus, as a box 312 



Vitrea (Polita) Tomlini, n.sp. 314 



New Margiuellidse and Pleurotomidse. (Plate XVII.) 315 



