270 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



Port Orchard, Washington; July, 1889; O. B. Johnson; 9 males, 

 5 females (14909). 



Ang^l Island, San Francisco Bay, California; Nov. 7, 1890; Alba- 

 tross; 3 males, 3 females (20162). 



Monterey, California: Trowbridge; 2 males (2056). H. Hemp- 

 hill; Imale (2287). 



Monterey Bay, California; under submerged rocks along shore; 

 Harold Heath; 1 male (22878). 



Pacific Grove, California: Stanford Univ.; 1 male (19075). July, 

 1895; J. O. Snyder; 5 males, 2 females (19819). John C. Brown; 

 3 specimens (23922). June, 1905; J. E. Benedict; 28 specimens 

 (32233). 



Santa Barbara, California; 1880; D. S. Jordan; 1 female, ovig. 

 (3049). 



Catalina Harbor and Island, California; 1874; W. H. Dall; 1 

 male, 1 female (14802). 



Pillar Point, San Mateo County, California ; June 30, 1903 ; C. F. 

 Baker; 1 male, 1 female (29311). 



Point Loma, San Diego Bay, California; Albatross; 7 specimens 

 (18961). 



Turtle Bay, Lower California; Aug. 1, 1896; A. TV. Anthony: 6 

 males, 10 females (19512). 



HEMIGRAPSUS OREGON EN SIS (Dana). 



Plate 70. 



Pseudograpsus oregonensis DANA, Proc. Acad. Nat. Sci. Philadelphia, vol. 



5, 1851 (1852), p. 248 (type-locality, in Orcgoniae freto "Puget"; type 



male, Cat. No. 2333, U.S.N.M.) ; U. S. Expl. Exped., vol. 13, Crust., pt. 1, 



1852, p. 334 ; atlas, 1855, pi. 20, fig. 6a-b. 

 Brachynottis oregonensis HOLMES, Occas. Papers California Acad. Sci., 



vol. 7, 1900, p. 82. 

 Hemigrapsus oregonensis RATHBUN, Amer. Nat., vol. 34, 1900, p. 587. 



Diagnosis. Broad in front. Two side teeth. Surface uneven. 

 Front with two prominent lobes. Palm of male with hairy patch 

 inside. Legs hairy. 



Description. Differs from H. nudus as follows : 



The distance across the front and orbits is greater, the antero- 

 lateral margins being less curved. Surface more uneven, especially 

 anteriorly, sparsely punctate. A raised curved line of granules runs 

 between the last side tooth and the end of the H impression. Edge 

 of front margined and bearing two prominent thickened lobes. Epi- 

 gastric lobes very prominent. The two lateral teeth are more promi- 

 nent and their sinuses more deeply cut. 



Posterior edge of epistome with two shallow V sinuses. The outer 

 maxillipeds are nearer together, the merus is no broader than long. 



