10 



SYSTEMATIC INDEX. 



44. Cyprina Islandica. Icelandic Cyprina, 



16. ASTARTE. ASTARTE, 



45. Astarte Danmoniensis. Devonshire Astarte, 



46. Astarte Scotica. Scottish Astarte, 



47. Astarte sulcata. Roundish Grooved Astarte, 



48. Astarte elliptica. Elliptical Astarte, 



49. Astarte multicostata. Many-ribbed Astarte, 



50. Astarte compressa. Compressed Astarte, 



17. Cytherea. Cytherea, 



51 . Cytherea exoleta. Worn Cytherea, 



52. Cytherea lincta. Glossed Cytherea, 



53. Cytherea undata. Waved Cytherea, 



18. Venus. Venus, 



54. Venus Casina. Thick-ridged Venus, 



55. Venus reflexa. Thin-ridged Venus, 



56. Venus Gallina. Hen Venus, . 



A. V. Gallina laminosa. Laminated, 



B. V. Gallina stiialuta. Common, 



57. Venus Piideauxiana. Prideaux's Venus, 



58. Venus fasciata. Banded Venus, 



59. Venus ovata. Ribbed Venus, . 



60. Venus triangularis. Triangular Venus, 



10. Venerupis. Bock-Venus, 



61. Venerupis virginea. Virgin Rock- Venus, 



62. Venerupis Pullastra. 



63. Venerupis decussata. 



Pullet Rock-Venus, 

 Decussated Rock-Venus, 



FAMILY VII. CARDIINA, 



20. Cardiuji. Cockle, 



64. Cardium echinatum. Prickly Cockle, 



65. Cardium edule. Eatable Cockle, 



66. Cardium fasciatum. Banded Cockle, 



67. Cardiuni exiguum. Diminutive Cockle, 



68. Cardium Icevigatum. Smooth Cockle, 



69. Cardium elongatum. Oval Cockle, 



21. Donax. Donax, 



Donax Trunculus. Oblong Donax, 

 Donax denticulata. Denticulated Donax 



FAMILY VIII. TELLININA, 

 22. Kellia. Kellia, 



72. Kellia suborbicularis. Suborbicular Kellia, 



73. Kellia rubra. Red Kellia, 



23 Lepton. Lepton, 



74. Lepton nitidum. Shining Lepton, 



24. Cryptodon. Cryptodon, . 



75. Cryptodon flexuosus. Flexuous Cryptodon, 



25. Tellina. Tellina, 



76. Tellina solidula. Little Thick Tellina, . 



77. Tellina crassa. Thick-Ribbed Tellina, . 



78. Tellina proxima. Brown Tellina, 



79. Tellina tenuis. Thin-shelled Tellina, . 



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