I SO RATHBUN 



Genus Callinectes Stimpson. 

 CALLINECTES BELLICOSUS (Stimpson). 

 Distribution. Point Loma, California, to Gulf of California. 



Family PIL 

 Genus Cycloxanthops Rathbun. 



CYCLOXANTHOPS NOVEMDENTATUS (Lockington). 



Plate vn, fig. 10. 



Distribution. San Pedro, California, to Guadalupe Island and San 

 Martin Island, Lower California. 



CYCLOXANTHOPS RUGOSUS Holmes. 

 Distribution. San Diego, California. 



Genus Lophopanopeus Rathbun. 

 LOPHOPANOPEUS BELLUS (Stimpson). 



XantJw bella STIMPSON, Ann. Lye. Nat. Hist. N. Y., VII, 204, pi. V, fig. 2, 



1860. 

 Lophoxanthus bellus A. MlLNE EDWARDS, Crust. Reg. Mex., 257, pi. XLVI, 



fig. 4, 1879 (part). HOLMES, Occas. Papers Calif. Acad. Sci., vii, 60, 



pi. I, fig. 3, 1900, and synonymy. 

 Lophopanopeus bellus RATHBUN, Bull. Lab. Nat. Hist. State Univ. Iowa, IV, 



272, 1898. 



Harriman Expedition. Prince William Sound, at Fox Island (Kin- 

 caid) and Virgin Bay (Coe). This is the most northern locality known 

 for this species. 



Distribution. Prince William Sound; Kasaan Bay, Prince of Wales 

 Island, Alaska (U. S. Nat. Mus.); Vancouver Island, British Columbia 

 to Monterey, California (type locality of Xanthodcs hemphillii Locking- 

 ton). Lower California (A. Milne Edwards). 



The figure given by A. Milne Edwards resembles L. bellus more than 

 it does any of the other species here described; the locality given is 

 Lower California. 



There are on the Pacific coast six closely allied species of Lophopano- 

 peus ; some of these have been confused with L. bellus and L. leucomanus ; 

 therefore the published localities from which I have not examined speci- 

 mens are accepted with a reservation. 



1 I have concluded to omit Daira americana Stimpson from the list until it is known 

 that the species really occurs in California in contradistinction to Lower California. 



