31. Chione succincta, Val. 



32. Tapes staminca, Conr. 



33. Saxidomus aratus, Gould. 



34. Rupellai'ia lamellifera, Conr. 



35. Petricola carditoides, Conr. 



36. Chama exogyra, Conr. 



37. Cardium quadragenarium, Conr. 



38. Lazaria siibquadrata, Carp. 



39. Luciiia Calilbruica, Conr. 



40. Diplodonta orbella, Gould. 



41. Ke'.lia Laperousii, Desh. 



42. Mytilus Californianus, Conr. 



43. Modiola capax, Conr. 



44. recta, Conr. 



45. Adula falcata, (lovild. 



46. slylina, Carp. 



47. Pecten latiauritus, Conr. 



48. Janira dentata, Sby. 



49. flinnites giganteus, Gray. 



50. Ostrea lurida var. rufoides. Gould 



51. var. expansa, Carp. 



52. Bulla nebulosa, (jrould. 



53. Haminea virescens, Sby. 



54. Tornatina cerealis, Gould. 



55. Dentalium hexagonum, Sby. 



56. Mopalia muscosa, Gould. 

 57. ? 



58. Acanthopleura scabra, Rve. 



59. Tschnochiton Magdalensis, Hds. 



60. Nacella insessa, Hds. 



61. depicta, Hds. 



62. paleacea, Gould. 



63. verualis, Dall (mss.) 



64. Adnata patina, P]scli. 

 65. persona. Esch. 



66. scabra, Nutt, Rve. 



67. spectrum, Nutt, Rve. 



68. Lottia gigantca. Gray. 



69. Scurria miti-a, Esch. 



70. RoweJIia radiata. Cooper. 



71. Clypidella bimaculata, Dall (mss.) 



72. Fissurella volcano, Rve. 



73. Glyphis aspera, Esch. 



74. Lucapina crenulata, Sby. 



75. Haliotis Ci-acherodii, Leach. 



76. Phasiauella conipta, Gould. 



77. puUoides, Carp. 



78. Pomaulax undosus. Wood. 



79. Trochiscus Norrisii, Sby. 



80. Chlorostoma fuuebrale, A. Ad. 



81. aureotinctum, Fbs. 



82. Calliostorna canaliculatum, Mart. 



83. costatuni, Mart. 



84. Crepidula lingulata, Gould. 



85. . excavata, Bred. 



86. uavicelloides, Nutt. 



87. var. nunimaria, Gould. 



88. var. cxplanata, Gould. 



89. Hipponyx cranioides. Carp. 

 90. tumeus. Carp. 



91. — — serratus, Carp. 



92. Serpulorbis squamigerus. Carp. 



93. Turritella Cooperi, Carp. 



94. Cerithidea sacrata, Gould. 



95. Bittium filosum, Gould. 



96. Litoriua planaxis, Nutt. 



97. scutulata, Gould. 



98. Lacuna variegata, Carp. 

 99. unifasciata. Carp, 



100. solidula, Loven. 



101. Rissoa acutclirata. Carp. 



102. Luponia spadicea, Gray. 



103. Trivia Californica, Gray. 

 104. Solandri, Gray. 



105. Erato vitcUina, Hds. 



106. Surcula Carpenteriana, Gabb. 



107. Drillia inermis, Hds. 



108. torosa. Carp. 



109. moesta. Carp. 



110. Conus Californicus, Hds. 



111. Odostoinia sp. 



112. Chemnitzia torquata, Gould. 



113. Scalaria Indianoruni, Carp. 



114. subcoronata. Carp. 



1] 5. Cerithiopsis assimilata, C. B. Ad. 



116. Lunatia Lewisii, Gould. 



117. Ranella Californica, Hds. 



118. Mitra maura. Swains. 



119. Volvarina varia, Sby. 



120. Olivella biplicata, Sby. 



121. Nassa fossata, Gould. 

 122. perpiuguis, Hds. 



