REFERENCE TO PLATES. 175 



FIGURE. PAGE. 



64, 65. Acmsea atrata Cpr. young. Original, . . .29 



66, 67. Acmsea apicina Dall. Original, . . . .24 



68-70. Acmsea pediculus Phil. Original, . . . .30 



71-73. Acmsea rosacea Cpr. type. Original, . . .21 



74-76. Acmsea triangularis v. casta Cpr. type. Original, . 21 



77, 78. Acmsea triangularis Cpr. type. Original, . . .20 

 79-82. Acmsea filosa Cpr. type. Original, .... 27 



83-85. Acmsea strigatella Cpr. type. Original, . . .27 



PLATE 8. 



86, 87. Acmsea pelta v. cassis Esch. Original, . . .-17 



88, 89. Acmsea pelta v. cassis Esch. Mai. Bl., . . .17 



90, 91. Acmsea pelta Esch. typical. Original, . . .17 



92-94. Acmsea pelta var. Original, 17 



95. Acmsea pelta plus nacelloides Dall. Original, . .18 



96, 87. Scurria mesoleuca Mke. Original, . . . .64 

 98, 99. Scurria mesoleuca (Patella vespertina Rv.) Conch. 



Icon., 64 



100, 1. Scurria mesoleuca (P. striata Rv.) Conch. Icon., . 64 



2. Scurria mesoleuca. Original, . . . . . .64 



PLATE 9. 



3-5. Acmsea discors Phil. Abbild., . . . .29 



6. Acmsea patina var. pintadina Gld. U. S. Exped., . 12 



7-9. Acmsea patina var. ochracea Dall. A. J. C., . 12 



10, 11. Acmsea patina v. fenestrata Nutt. Conch. Icon . 12 



12-14. Acmsea patina v. fenestrata. Original, . . 12 



15, 16. Acmsea dorsuosa Gld. Chall. Gast., . . 45 



17, 18. Acmsea heroldi v. conulus Dkr. Original, . 45 



19-21. Acmsea heroldi v. pygmsea Dkr. Moll. Jap., . 45 



22-24. Acmsea sybaritica Dall. A. J. C., . . 22 



25, 26. Acmsea testudinalis L. F. and Hani., . .10 



27-29. Acmsea testudinalis L. Original, . . .10 



30. Acmsea concinna Lischke var. Original, . . 44 



PLATE 10. 



1-6. Patella vulgata L. Moll. Esp., . . . .82 

 7-17. Patella cserulea L. Moll. Esp., 



13,14. Acmsea virginea Mull. Forbes & Hani., . . 9 



PLATE 11. 



15-19. Patella lusitanica Gmel. Moll. Esp., . . .87 



20-23. Patella csarulea v. aspera Link. Moll. Esp., . . 84 



24-26. Patella athletica F. & H. (=vulgata) F. & H., . 82 



27-29. Patella camilea v. lowei Orb. Moll. Guin., . . 84 



