DECAPODS 1 75 



Genus Loxorhynchus Stimpson. 

 LOXORHYNCHUS GRANDIS Stimpson. 



Distribution. 'From the Farallones and San Francisco to San Diego, 

 California; 6^-68 fathoms. 



LOXORHYNCHUS CRISP ATUS Stimpson. 



Distribution. From the Farallones to San Diego, California; 4-53 

 fathoms. 



Genus Scyra Dana. 



SCYRA ACUTIFRONS Dana. 



Distribution. From Kadiak, Alaska, to San Diego, California. Low 

 tide to 40 fathoms. 



Genus Rhodia Bell. 

 RHODIA PARVIFRONS (Randall). 



Herbstia pa rvifrons RANDALL, Jour. Acad. Nat. Sci. Phila., vm, 107, 1839. 



HOLMES, Occas. Papers Calif. Acad. Sci., vn, 38, 1900. 

 Herbstia (Herbstiella) camptacantha HOLMES, op. tit., p. 37, and synonymy. 

 Rhodia parvifrons RATHBUN, Amer. Nat., xxxiv, 511, 1900. 



Distribution. From San Pedro, California, to Acapulco, Mexico; 

 30-40 fathoms. 1 



Family CANCRID^E. 



Genus Cancer Linnaeus. 



CANCER PRODUCTUS Randall. 



Harriman Expedition. Fox Island (T. Kincaid). 

 Distribution. 'From Kadiak, Alaska, to Magdalena Bay, Lower Cali- 

 fornia. 



CANCER AMPHICETUS Rathbun. 

 Plate vi, fig. 3. 



Trichocarcinus dentatus MIERS, Proc. Zool. Soc. London, 1879, p. 34; not 



Cancer dentatus BELL, 1835; nor C. dentatus HERBST, 1785. 

 Cancer amphicstus RATHBUN, Proc. U. S. Nat. Mus., xxi, 582, 1898. 



Distribution. From San Diego Bay, California, to Magdalena Bay, 

 Lower Calif ornia ; Japan; Korea; 11^-169 fathoms. 



Size. Specimens from Magdalena Bay, in the Museum of Compara- 



1-Libinia emarginata Leach, included in Holmes's list on the authority of Randall, I 

 have omitted, because so many errors have been discovered in the localities cited by 

 Randall that the existence of this species on the west coast of America needs verifica- 

 tion. 



