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 MARINE ZOOLOGY ANATINIDi?: 80. Thracia fragil'is, Pennant. Rare. Rye Harbour. Thracia fragilh var. villoilmcula^ MacGillivray. Brighton. t SEPTIBRANCHIA CUSPIDARIID^ 81. Cuspidaria cuspidata (Olivi) t Brighton. SCAPHOPODA DENTALIIDii: 82. Dentalium vulgare^ da Costa. Very common. Hastings. 83. Dentalium entails^ Linnsus.t Brighton. GASTROPODA PROSOBRANCHIA AsPIDOBRANCHIA PATELLIDiE 84. Patella vulgata, Linnaeus. The limpet ; very common. Hastings. Patella vulgata var. depressa. Brighton. t 85. Helcion pellucidum, Linnaeus. A specimen shows alternate rays of blue and brovv^n upon a dull orange ground ; rare. Hastings. ACUXVDM 86. Acmisa virginea (Muller) Shell pink, with interrupted lines of colour ; rare. Hastings. FiSSURELLIDiE 87. Emarginula ^ssura, Li'mnxus. Shell depressed, with a marginal slit in front ; rare. Hastings. 88. Emarglnula cornea^ Schumacher. Shell more conical than that of the last species ; not uncommon upon trawled rock. Hastings. 89. Fhsurella greeca^ Linnaeus. The ' key-hole ' limpet. Shell cancel- lated with radial and concentric ribs, and having an apical perforation ; somewhat rare. Hastings. TROCHIDiE 90. Gibhula magusy Linnaeus. Shell depressed, with large umbilicus ; common. Hastings. 91. Gibbula tumiday Montague.* Rare. Hastings. 92. Gibhula cineraria, Linnaeus. Shell slightly turreted ; common. Hast- ings. 93. Gibbula umbilicata, Montague. Shell conical, sides slightly convex ; common. Hastings. 94. CaUioitoma montagui, Wood. Shell rather high in the spire, with spiral ridges, and fine striae crossing the inter- vening furrows; rare. Hastings. 95. Calliostoma exasperatum, Pennant.t Brighton. 96. Calliostoma granulatum (Born) Shell acutely conical, granulated ; sides slightly concave; not uncommon. Hastings. Calliostoma granulatum var. lactea, Jeffreys. Similar to the type, but white ; rather rare. Hastings. 97. Calliostoma zizyphinus, Linnsus. Shell acutely conical, sides straight, whorls spirally lined ; common. Hastings. Calliostoma zizyphinus var. lyonsi, Leach. Shell white and nearly smooth ; rather uncommon. Hastings. TuREINIDi!E 98. Phasianella pulla. Shell small, conical, and with lines of red running diagonally across the whorls ; very rare. Hastings. PECTINIBRANCHIA LlTTORINID^ 99. Lacuna crassior, Montague. Periostracum horny-looking, wrinkled concentrically ; rare. Hastings. 100. Lacuna divaricata (Fabricius) Brighton. 10 1. Lacuna parva (da Costa) Brighton. 102. Lacuna pallidula (da Costa) Brighton. 103. Littorina obtusata, Linnaeus. Shell with low spire. Colour, canary or orange ; common. Hastings. 104. Littorina littarea, Linnaeus. The edible periwinkle ; very common. Hastings.