176 



51. subtruncata, Montagu; 1, 



2,3. 



52. solida, Linné ; 1, 2,3. 

 var, elliptica^ Brown; 2.3. 



SCROBICULARIA, Schumacher. 



53. piperata, Gmelin ; 1, 2, 3. 



SYNDESMYA, Recluz. 



54. alba, Wood; 1,2, 3. 



55- tennis, Montagra; 1, 2, 3. 



56. prismatica, Montagu ; 1, 



2,3. 



57. intermedia, Thompson, (^i- 



tida, MûUer?); 1,2,3, 



58. ovata , Philippi, {segmen- 



iiim, Recluz) ; 2, 3. 



I 



y 



ERVILIA, Turton. 



59. castanea, Montagu ; 1, 2. 



FRAGILIA, Deshayes. 



60. fragUis, Linné;2, 3. 



TELLINA, Linné. 



61. crassa, Pennant ; 1,2, 3. 



62. balaustina, Linné; 2, 3 



(Guernesey et Cap-Bre- 

 ton). 



63. fabula, Gmelin; 1, 2,3. 



64. incarnata, Linné, (sr/îca- 



lida, Pulteney); 1, 2, 3. 



65. donacina, Linné; 1, 2, 3. 



66. tenuis, Da Costa; 1, 2, 3. 



67. pusilla, Philippî; 2, 3, 



68. Balthica, Linné, {solidula^ 



Pulteney); 1,2, 3. 



69. serrata, Brocchî; 2, 3 



(Belle-Ile, Basse Kikerîe, 



Cap-Breton). 



70- compressa, Brocchî, {stri- 



gillata, Philippi) ; 3 (Cap- 

 Breton, de FoUn et Fis- 



cher) . 



DONAX, Linné. 



I 



71. trunculus, Linné; 1, 2, 3. 



72. vîttatus, Jeffreys, [Allan- 



tiens, Hidalgo); 1, 2> 3. 



73. politus, Poli, (complanatus^ 



Montagu); 2, 3. 



MESODESMA, Deshayes. • 



74? cornea, Poli ; 1, 2, 3 (valves 



isolées). 



NESIS, Monterosato. 



75? prima, Monterosato; 3 (Cap- 

 Breton , Monterosato). 



PSAMMOBIA, Lamarck. 



76. vespertina, Chemnitz; 1,2, 



3. 



■T 



77. Feroensis, Chemnitz ; 1, 2, 



3. 



78. costulata, Turton ; 2, 3. 



79. tellinella. Lamarck ; 1,2,3. 



PETRICOLA, Lamarck. 



80. lithophaga, Retzius; 1, 2, 3. 



VENERUPIS, Lamarck. 



81. irus, Linné; 1, 2, 3. 



CORALLIOPHAGA, Blainville. 



82. lithopliagella , Lamarck; 



2, 3 (Guernesey, Ilôt du 

 Four, Cap-Breton). 



TAPES, Mùhlfeld. 



83. decussatus, Linné; 1, 2, 3. 



