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 A HISTORY OF SUSSEX 52. Venus ovata. Pennant. Shell small, radiately ribbed, and with fine concentric lines ; rather rare. Hastings. 53. Venus gal/ina, Linnseus.* Very rare. Hastings. 54. Tapes virgineus, Linnaeus. Shell laterally compressed, polished. Colour more or less in rays, undulatory. Trawled ; common. Hastings. 55. Tapes pullastra, Montague. Very common. Hastings. Tapes pullastra var. perforans, Montague. Shell rather smaller than the type ; not so deep from umbo to margin ; common. Hastings. 56. Tapes decussatus, Linnaeus. Shell somewhat quadrangular, strongly cancellated with radial and concentric lines ; somewhat scarce. Hastings. CARDIACEA Qakduhje 57. Cardium echinatum, Linnaeus. Common. Hastings. 58. Cardium exiguum, Gmelin.* Very rare. Hastings. 59. Cardium nodosum, Turton. A single valve only ; rare. Hastings. 60. Cardium edu/e, Linnasus. Common. Rye. 61. Cardium norvegicum, Spengler. Common in the trawl. Hastings. MrACEJ Garid.*; 62. Gari ferraensis (Chemnitz). Brighton. Myid^ 63. Mya truncata, Linnaeus. A coarse shell, mainly conspicuous by the membranous, siphonal sheath ; com- mon. Hastings. 64. Mya arenaria, Linnseus. A single valve only taken, and that of an immature specimen ; rare. Hastings. 65. Sphenia binghami, Turton.* Rare. Hastings. SOLENID^ 66. Solecurtus scapula, Turton, var. ohlonga, Jeffreys. Shell proportionately not so deep from umbo to margin as in the type. Trawled about 25 miles off Beachy Head ; rare. Hastings. 67. Cultellus pellucidus, Pennant.t Brighton. 68. Ensis ensis, Linnaeus. Shell curved, small ; very common. Hastings. 69. Ensis sillgua, Linnaeus. Shell nearly straight ; somewhat com- mon. Hastings. 70. Solen vagina, Linnaeus. Shell short and straight. SAXICAVIDi^ 71. Saxicava rugosa, Linnaeus. This little ugly deformed shell is found boring into the hardest rock. Not uncom- mon. Hastings. GASTROCHiENIDii: 72. Gastrochana dubia, Pennant.t Brighton. PHOLADACEA PHOLADIDi?: 73. Pholas dactylus, Linnaeus. Shell large, delicate and white. Animal with boring propensities ; common. Hast- ings. 74. Barnea Candida, Linnaeus. Common. Hastings. 75. Barnea parva. Pennant.* Somewhat rare. Hastings. 76. Zirfaa crispata, Linnaeus. Shell short and deep ; not uncommon. Hastings. Teredinid^ 77. Teredo navalis, Linnaeus.t Brighton. ANATINACEA Pandorid^ 78. Pandora incequivalvis, Linnaeus. Shell with the left valve flat, and the right one convex ; rather rare. Hastings. Pandora inaquivalvis var. pinna, Mon- tague. Shell not so produced in front as in the type ; rather rare. Hastings. LvONSIIDiC 79. Lyonsia norvegica (Chemnitz)t Brighton.