NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 189 

 Section BASILIOCHITON Berry, 1918. 

 LEPIDOCHITONA FLECTENS Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. 649; Proc. Acad. Nat. Sci. Phila., 1865. p. 



90. — Pilsbry, Man., vol. 15, pi. 15, figs. 34-37. 

 Vancouver Island to San Diego, California. 



LEPIDOCHITONA FLECTENS HEATHII Berry, 1911. 



Proc. Acad. Nat. Sci. Pliila., p. 487, pi. 40, text figs. 1-7. 

 Monterey to San Pedro, California. 



Section CYANOPLAX Pilsbry, 1892. 



LEPIDOCHITONA HARTWEGII Carpenter, 1855. 



Proc. Zool. Soc, p. 231.— Pilsbry, Man., vol. 14, p. 45, pi. 14, figs. 81-85. 

 Forrester Island, Alaska, to the Gulf of California. 



LEPIDOCHITONA HARTWEGII NUTTALLI Carpenter, 1855. 



Proc. Zool. Soc, p. 231. — Pilsbry, Man., vol. 14, p. 46. 

 Straits of Fuca to Turtle Bay, Lower California. 



LEPIDOCHITONA RAYMONDI Pilsbry, 1894. 



Nautilus, vol. S, No. 4, p. 46. 



Seward, Alaska, to San Pedro, California. 



LEPIDOCHITONA FACKENTHALLAE Berry, 1919. 



Lorquinia, Jan. 1919, p. 5. 



Pacific Grove, Monterey Bay. (S. S. Berry.) 



LEPIDOCHITONA LOWEI Pilsbry, 1918. 



Nautilus, vol. 31, No. 4, p. 127. 

 San Pedro, California. 



Subgenus Spongioradsia Pilsbry, 1893. 



SPONGIORADSIA ALEUTICA Dall, 1878. 



Proc U. S. Nat. Mns.. vol. 1, p. 1. — Pilsbry, Man., vol. 15, p. 65, pi. 15, 



figs. 30-33. 

 Aleutian Islands. 



Genus SCHIZOPLAX Dall, 1878. 



SCHIZOPLAX BRANDTII Middendorff, 1846. 



Bull. Acad. Sci. St. Petersburg, vol. 6, p. 117. — Pilsbry, Man., vol. 14, pi. 



11, figs. 32-37. 

 Shantar Bay, Okhotsk Sea; Bering, Pribilof, and Aleutian Islands, and 



south to Cape Fox, Alaska. 



SCHIZOPLAX MULTICOLOR Dall, 1920. 



Nautilus, vol. 34, No. 1, July, 1920, p. 22. 

 Bering Sea. 



Genus NUTTALLINA Carpenter, 1873. 



NUTTALLINA CALIFORNICA Reeve, 1847. 



Reeve, Conch. Icon., Chiton, pi. 16, fig. 89. — Pilsbry. Man., vol. 14, pi. 54, 



figs. 23, 24 ; pi. 56, figs. 12-18. 

 Straits of Fuca to San Diego, California. 



167980— 20— Bull. 112 13 



