kp:ference to plates. 177 

 Platk 19. 



[•■ICURE. I'AGE. 



35, 36. Helcioniscus nifrnsciuamatus Rv. Conch. Icon., . 125 



37, 38. Acma?a striata Q. & G .47 



39, 40. Helcioniscus ornatus Dillvv. Conch. Icon., . . 137 



Plate 20. 



41, 42. Patella neglecta Gray (zebra Rv.). Conch. Icon., . 95 



43, 44. Nacella inradiata Rv. Conch. Icon., . . .120 



45, 46. Helcioniscus depsta Rv. Conch. Icon., . . .151 



Plate 21. 



47, 48. Patella conspicua Ph. Conch. Icon., . . .90 

 49, 50. Helcioniscus denticulatusMartyn (tvpeof P. imbricata 



Rv.). Conch. Icon., . . '. " . . . .138 



51, 52. Helcioniscus radians v. earlii Rv. type. C. Icon., . 140 



Plate 22. 



9, 10. Patella pica Rve. Conch. Icon., . . . .97 



11,12. Patella ustulata Rve. Conch. Icon., . . . 101 

 13, 14. Patella pica Rv. Conch. Icon., .... 97 



15, 16. Patella argenvillei Kr. Conch. Icon., . . .95 



1-3. Helcioniscus rediiniculum Rv. ..... 136 



4, 6-8. Helcioniscus radians v. decora Phil., . . . 140 



Plate 24. 



9, 10. Patella exusta Reeve. Conch. Icon., . . .98 



11, 14, 15. Patella plumbea Lm. Conch. Icon., . . .91 



12, 13. Acm?ea saccharina L. (lanx Rv.) Conch. Icon., . 49 



Plate 25. 



16-19. Helcioniscus testudinaria L. Original, . . . 128 

 20, 21. Patella aculeata Rv. Couch. Icon., . . . .100 



Plate 26. 



22-25. Patella niiniata Born. Original, , . . .94 

 26, 27. Patella miniata Born. Conch. Icon., . . .94 



28, 29. Patella chitonoides Rv. Conch. Icon., ... 98 



Plate 27. 



30, 32. Patella oculus Born. Original, 106 



34, 35. Patella cochlear Born. Conch. Icon., . . . 104 



12 



