186 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



PUNCTURELLA MULTISTRIATA Dall, 1914. 



Nautilus, vol. 28, No. 5, p. 63. 



Atka Island, Aleutians, east and south to San Diego and Cortez Bank, 

 California. 



PUNCTURELLA COOPERI Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. G51 ; Proc. Cal. Acad. Sci., vol. 3, p. 214. 

 Kasaan Bay, Alaska, to Santa Rosa Island, California. 



PUNCTURELLA CARYOPHYLLA Dall, 1914. 



Nautilus, vol. 28, No. 5, p. 63. 



Off San Diego, California, in 67 to 81 fathoms. 



PUNCTURELLA LONGIFISSA Dall, 1914. 



Nautilus, vol. 28, No. 5, p. 63. 

 Bering Island, Bering Sea. 



Genus HEMITOMA Swainson, 1840. 



HEMITOMA YATESII Dall, 1901. 



Nautilus, vol. 14, No. 11, p. 125 ; Proc. U. S. Nat. Mus., vol. 24, pi. 38, figs. 



1-3. 

 Forrester Island, Alaska, to Monterey, California. Panama? 



HEMITOMA BELLA Gabb, 1865. 



Proc. Cal. Acad. Sci., vol. 3, p. 188. 

 Santa Cruz to San Pedro, California. 



HEMITOMA GOLISCHAE Dall, 1916. (Plate 5, fig. 2.) 



Nautilus, vol. 30, No. 6, p. 61. 

 San Nicolas Island, California. 



Subclass AMPHINEURA. 



Order POLYPLACOPHORA. 



Superfamily EOPLACOPHORA. 



Family LEPIDOPLEURIDAE. 



Genus LEPIDOPLEURUS Risso, 1826. 

 Section LEPTOCHITON Gray, 1847. 

 LEPIDOPLEURUS CANCELLATUS Sowerby, 1839. 



Conch. Illus. Chiton, figs. 104, 105.— Pilsbky, Man., pi. 3, figs. 54-58. 

 Bering Strait to Sitka and Oregon. Also Atlantic. 



LEPIDOPLEURUS RUGATUS Carpenter, 1892. 

 . Pilsbry, Man., p. 11, pi. 3, figs. 67-70. 

 Monterey, California, to San Tomas, Lower California. 



LEPIDOPLEURUS INTERNEXUS Carpenter, 1892. 



Pilsbry, Man., p. 12. 



Belkoffski, Alaska, to San Diego, California. 



