EXPLANATION OF PLATES. 415 



5*7. Ceritella acuta, Morris and Lycett. Oolite, England, . 248 



58. Triforis perversus, Linn. Mediterranean, . . . 249 



59. Triforis (Ino) corrugatus, Hinds. Sandwich Islands, . 249 



60. Triforis (Sj'char) vitreus, Hinds, Malacca, . . . 249 



61. Triforis (Mastonia) vulpinus. Hinds. New Ireland, . 249 



62. Exelissa (Kilvertia) formosa, Lycett. Oolite, England, 249 



63. Potamides mamillatum, Risso. Mediterranean, . . 250 



Plate 70. 



64. Eastigiella carinata. Reeve, ...... 249 



65. Triforis (Laeocochlis) granosus. Wood. Norway, . 250 



66. Potamides ebeniuuui, Brug. Australia, . . . 250 

 6*1. Potamides (Brotia) pagodula, Gould. Burmah, . . 250 



68. Potamides (Tj^mpanotomus) fuscata, Linn. W. Africa, 250 



69. Potamides (Lampania) zonale, Brug. Australia, . 250 



70. Potamides (Pj^razus) sulcatum, Brug. China, . . 250 



71. Potamides (Telescopium) telescopium, Brug. India, . 251 



72. Potamides (Cerithidea) decollatum, Linn. East Indies, 251 



73. Potamides (Gerithidea) obtusum. Lam. Malacca, . 251 



74. Paludomus conicus. Gray. India, .... 252 



75. Paludomus (Philopotamis) nigricans, Reeve. Ceylon, 252 



76. Paludomus (Tanalia) loricata. Reeve. Ceylon, . . 252 



77. Paludomus (Stomatodon) Bensoni, Brot. Southern 



India, . ' 252 



78. Melania (Melanella) glans, von dem Busch. Java, . 252 



79. Melania (Pachychilus) lasvissima, Sowb. Mexico, . 252 



80. Melania (A^dacostoma) scalaris, Spix. Brazil, . . 252 



81. Melania (Sulcospira) sulcospira, Mousson. Java, , 253 



82. Melania (Nigritella) decollata. Lam. Madagascar, etc., 253 



83. Melania (Melanoides) episcopalis, Lea. Malacca, . 253 



84. Melania (Melania) hastula. Lea. Philippines, . . 253 



85. Melania ( Striatella) tuberculata, Miill. East Indies, . 253 



86. Melania (Plotia) bellicosa. Hinds. Fiji Islands, . . 253 



87. Melania (Plotiopsis) Ballonensis, Conrad. Australia, , 253 



88. Melania (Tiara) setosa, Swains. Fiji Islands, . . 253 



89. Melania (Tiaropsis) Winteri, Busch. Java, , ... 253 



90. Melania (Tarebia) Celebensis, Quoy. Celebes, . . 253 



91. Melania (Sermyla) tornatella, Lea. Philippines, . . 253 



92. Melania (Oncomelania) Hupensis, Gredler. China, . 254 



Plate 71. 



93. Dorissa brevier, Troschel. Guiana, .... 254 



94. Claviger aurita. Lam. Senegal, ..... 254 



95. Tiphobia Horei, E. A. Smith. L. Tanganyika, Africa, 254 



96. Hemisinus lineolatus. Wood. Jamaica, . . . 254 



97. Hemisinus (Yerena) crenocariha, Mor. Brazil, . . 254 



