144 



7. angulata, Gray. 



8. angulifera, I)es7i. 



9. angusta, id. 



10. antiquata, Spent/. 



11. Aphrodina, Desk. 



12. apicina, it?. 



13. aspersa, Sow. 



14. attenuata, Ztes/j. 



15. bilineata, C.B.Ad. 



16. Byronensis, Gray. 



17. Californica, ZtasA. 



18. canaliculata, Say. 



19. capillacea, 2)&s/j. 



20. carinulata, id. 



21. complanata, id. 



22. contraria, zd. 



23. coralliua, Linn. 



24. corbiculoides, Ztes/j. 



25. Corbuloides, id. 



26. cordiformis, id. 



27. cornea, id. 



28. Cumin gii, id. 



29. cuneata, Chemn. 



30. cyprinus, Gray. 



31. decora, Desk. 



32. depressa, Speng. 



33. discors, GVay. 



34. dissimilis, Desk. 



35. dolabrata, id. 



36. Donaciformis, Gray. 



37. Dysoni, id. 



38. edulis, King. 



39. egena, Desk. 



40. elegans, $?«;. 



41. elliptica, Brown. 



42. elongata, Q?<oy. 



43. epidermia, Desk. 



44. exalbida, Gray. 



45. eximia, Des/j. 



46. exoleta, Gray. 



47. explanata, Des^. 



48. fasciata, Lam. 



49. fragilis, Chemn. 



50. gibbosula, Ztes/j. 



51. glauca, Born. 



52. hians, _P/«7. 



53. bepatica, Besh. 



54. ina3qualis, id. 



55. incarnata, id. 



56. incongraa, id. 



57. inflata, Brown. 



58. lsevis, Chemn. 



59. Largillierti, P/«7. 



60. lateralis, <Say. 



61. lurida, Phil. 



62. Luzonica, Des7^. 



63. maculata, Chemn. 



64. maxima, Midd. 



65. mera, Zte«£. 



66. Meritriciformis, id. 



67. mitis, id. 



68. Murcbisoni, id. 



69. nitida, Schro. 



70. nucleus, Cowr. 



71. Nuttallii, id. 



72. obesa, ZtesA. 



73. olorina, Phil. 



74. opposita, Desh. 



75. ornata, Gray. 



76. ovalina, Lam. 



77. ovabs, £ay. 



78. ovata, Gray. 



79. pellicula, Besh. 



80. pellucida, Chemn. 



81. pbcataria, Ziwra. 



82. pbcatilis, ites/j. 



83. polita, Chemn. 



84. pulcbra, Gray. 



85. pura, ZtesA. 



86. quadrangularis, id. 



87. radiolata, id. 



88. Keevei, id. 



89. Keevesii, id. 



90. rostralis, id. 



91. rostrata, Speng. 



92. rufescens, Zam. 



93. rugosa, Chemn. 



94. Sauliae, Gray. 



95. Sayi, id. 



96. scapellum, Besh. 



97. semistriata, id. 



98. semisulcata, id. 



99. Senegalensis, Phil. 



100. sericia, Ztes/j. 



101. silicula, id. 



102. Solandri, Gray. 



103. solidissima, Chemn. 



104. Spengleri, Linn. 



105. striatella, ia»z. 



106. stultorum, Linn. 



107. sublanceolata, Ztes/j. 



108. subrostrata, id. 



109. subtruncata, Mont. 



110. sulcataria, ZtesA. 



111. symmetrica, id. 



112. Tbracioides, ^d. £• #. 



113. Tellinoides, Cowr. 



114. transversa, Ztes^. 



115. triangula, Renieri. 



116. triangularis, Za?w. 



117. tristis, Besh. 



118. truncata, il/o«^. 



119. tumida, Chem. 



120. velata, Phil. 



121. Veneriformis, Des/z. 



122. violacea, Chemn. 



123. virgo, 2tes/L 



124. vitrea, Gray. 



Figures. 



Mactra stultorum. PI. Q. Yig. 8. Shell, with animal, showing the 

 serrately fringed siphons. 



