TERTIARY FOSSILS. 87 



A. RUDIS, Gabb. 



A. rudis, Gabb; Pal. Cal., Vol. 2, p. 51, p.. 14, fig. 9, 9 a. 

 Pliocene, San Fernando. 



SCURRIA, M. Edw. S. MITRA, Esch., sp. 



Acmoea mitra, Esch. ; Zool. Atlas, 1833, p. 18, pi. 23, fig. 4. 



A. mamillata, Esch. ; loe. cit., p. 18. 



A. marmorea, Esch. ; loc. cit., p. 19. 



Patella scurra, Less. ; Voyage Coquille, p. 421. 



Acmoea scurra, d'Orb. ; Am. Mer., p. 478. 



Patella (Acmcea) scurra, Midd. ; Mai. Ross., Pt. 2, p. 34. 



Scurria mitra, Gray ; Genera, 1856. 



Lottia pallida, Gray ; Zool. Beechey's Voy., p. 147, pi. 39, fig. 1. 



Post-Pliocene, San Pedro. Living. 



NACELLA, Gray. N. INSESSA, Hds., sp. 



Patella insessa, Hds. ; An. Mag. Nat. Hist., Vol. 10, p. 82. 

 Nacella insessa, Cpr. ; Brit. Assn. Rep., 1863, p. 650. 

 Post-Pliocene, San Pedro. Living. 



CRYPTOCHITON, Gray. C. STELLERII., Midd. 



Chiton Stellerii, Midd. ; Bull. Acad. S. Pet., Vol. 6, p. 116. 



Chiton (Cryptochiton) Stellerii, Midd. ; Mai. Ross., pt. 1, p. 93, pi. 1, fig. 1, 2. 



C. amiculatus, Sby. ; Conch. 111., Chitons, fig. 80. 



C Sitkensis, Rve. ; Icon. Conch., pi. 10, sp. 55. 



? C. chlamys, Rve., loc. cit., sp. 60. 



C. Californicus, Prescott; Am. Jour. Sci., 1864, p. 185. 



Post-Pliocene, San Diego. Living. 



BULL A, Linn. B. NEBULOSA, Gld. 



Bulla nebulosa, Gld. ; in A. Ad. ; Thes. Conch., Vol. 2, p. 578, pi. 123, fig. 



79, 80. 

 Pliocene, San Fernando. Living. 



B. ADAMSI, Mke. 



Bulla Adamsi, Mke. ; Zeitsch., 1850, p. 162. 

 Post-Pliocene, San Pedro. Living. 



