Nota. The known localities are: Cerros Island or Cedros Is., Mexico, at 207 m (Dall, 1891) -type locality-, at 100 m (Hemcke, 1939); off San Diego (Endo et al., 1994); Catalina Is., California, at 80 m (Helmcke, 1939); Monterey, Santa Barbara Is., San Clemente Is., California (Dall, 1891); off California, at 80-85 m (Thomson, 1927).