Pomona College, Claremont, California 109 



Acmea incessa Hds. Seaweed Limpet. Fig. 50 k 

 Acmea astni Midd. Black Limpet. Fig. 51. 

 Acmaea (Lottia) g'igantea. Owl Limpet. Fig. 52. 

 Acmaea paleacea Gld. Chalf Limpet. Fig. 53. 

 Tylodina fungina Gab. Fig. 54. 



Gadinia reticulata Sby. Netted Button-shell. Fig. 55. 

 Crucibulum spinosum Sby. Cup and Saucer Limpet. Fig. 56. 

 Crepidula dorsata Brod. Wrinkled Slipper-shell. Fig. 57. 

 Crepidula aculeata Gmel. Prickly Slipper-shell. Pig. 58. 

 Crepidula adunca Sby. Hooked Slipper-shell. ¥\g. 59. 

 Crepidula nivea Gould. White Slipper-shell. Fig. 60. 

 Crepidula onyx Sby. Onyx Slipper-shell. PI. II. Fig. 19. 

 Fissure/la volcano Rve. Volcano Shell. Fig. 62. 



Fissuridea as per a Lsch. Rough Key-hole Limpet. Fig. 63. 



Fissuraidea murina Dall. White Key-hole Limpet. Fig. 64. 



Lucapina crenulata Sby. Great Key-hole Limpet. Fig. 65. 



Clypidella ( Lucapinella) calliomarcjinata Cpr. Southern Key- 

 hole Limpet. Fig. 66. 



Megatebennus bimaculatus Dall. Spotted Key-hole Limpet. 

 Fig. 67. 



Tunis ( Bathytoma) carpeuteriaua Gab. Carpenter Turret Shell. 

 Fig. 68. (Laguna Beach, Jahraus.) 



Troplion belcheri ¥ids. Belcher Trophon. Fig. 69. (Jahraus.) 



Tropliou triaugulatus Cpr. Three-cornered Trophon. Dredged 

 off Laguna Beach. Bean. Fig. 70. 



Australium undosus Wood. Wavy Topshell. Fig. 71. 



Bullaria gouldiana Pisb. Gold's Bubble-shell. Many collected 

 at Balboa much larger than the specimens shown. Pig. 72. 



Haminea vesicula Gld. White Bubble-shell. Fig. 73. 



Haminea viresceus Sby. Green Bubble-shell. Fig. 74. 



Cypraea spadicea Gray. Nut-brown Cowry. Fig. 75. 



Trivia calif ornica Gray. Lit f le Coffee-bean. Fig. 76. 



Trivia solaudri Gray. Solander Trivia. Fig. 77. 



Erato vitellina Hds. Veally Erato. Fig. 78. (Slightly en- 

 larged.) 



Erato collumbella Mke. Dove Shell. Fig. 79. 



