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. 



