REFERENCE TO PLATES. 175 



FIGURE. PAGE. 



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



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



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



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



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



77, 78. Acma?a 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. Acnisea pelta v. cassis Esch. Original, . . .17 



88, 89. Acmsea pelta r. cassis Esch. Mai. BL, . . .17 



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



92-94. Acmsea pelta var. Original, . . . . .17 



95. Acmsea pelta plus uacelloides 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 Old. 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 Old. Chall. Gast., . . .45 



17, 18. Acrnsea heroldi v. couulus Dkr. Original, . . 45 



19-21. Acma?a heroldi v. pygmsea Dkr. Moll. Jap., . . 45 



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



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



27-29. Acma?a 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., . . . .83 



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



PLATE 11. 



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



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



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



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



