2 PEOCEEDINGS OF THE NATIONAL MUSEUM voo. G6 



ACILA CASTREKSIS Hinds 



Plate 9, fig. 5 



Nucula castrensis Hinds, Proc. Zool. Soc. London, 1843, p. 98 ; Voy. of the 

 Sulphur, Zool., Moll., p. 61, 1844. 

 Puget Sound. U. S. Nat. Mus. Cat. No. 106861. 



ACMAEA DIGITALIS Eschscholtz 



Plates 15 and 16 



Acmaea digitalis Eschscholtz, Zool. Atlas, pt. 5, p. 20, 1833. 



Southern California. Photographed by Prof. F. W. Kelsey, San Diego. 



AGATHOTOMA QUENTINENSIS Dall 



Plate 8, fig. 1 



Cytharella (Agathotoma) qucntinensis Dall, West Amer. Scientist, San Diego, 

 vol. 19, No. 3, p. 21, 1921. 

 Pliocene (?) of San Quentin Bay, Lower California. U. S. Nat. Mus. Cat. 

 No. 333134. 



ALIGENA NUCEA Dall 



Plate 28, fig. 2 



Aligena nucea Dall, Proc. U. S. Nat. Mus., vol. 45, p. 597, 1913. 

 Gulf of California. U. S. Nat. Mus. Cat. No. 267149. 



AMPHISSA (COSMIOCONCHA) PALMERI Dall 



Plate 21, fig. 8 



Atnphissa {Cosmioconcha) palmei-i Dall, Proc. U. S. Nat. Mus., vol. 45, No. 

 2002, p. 589, 1913. 

 Head of the Gulf of California. U. S. Nat. Mus. Cat. No. 96720. 



AMPHISSA (COSMIOCONCHA) PARVULA Dall 



Plate 21, fig. 1 



Atnphissa (Cosmioconcha) parvula Dall, Proc. U. S. Nat. Mus., vol. 45, No. 

 2002, p. 590, 1913. 

 Off La Paz Bay, Gulf of California, in 112 fathoms. U. S. Nat. Mus. Cat. 

 No. 211029. 



AMPHISSA (COSMIOCONCHA) PERGRACILIS Dall 



Plate 21, fig. 9 



A7nphissa (Cosmioconcha) pergracilis Dall, Proc. U. S. Nat. Mus., vol. 45, p. 

 590, 1913. 

 Off Cape Lobos, Gulf of California, in 58 fathoms. U. S. Nat. Mus. Cat. 

 No. 211030. 



ANATINA (RAETINA) INDICA Dall 



Plate 20, fig. 2 



Racta (Raetina) indica Dall, Trans. "Wagner Inst. Sci. Phila., vol. 3, p. 

 882, 1898. 

 Bombay. U. S. Nat. Mus. Cat. No. 90276. 



