I 14 RATHBUN 



Bodega Bay, California (University of California). 



San Francisco Bay, California (W. H. Dall ; Livingston Stone). 



San Francisco Bay, off San Mateo, 3 fathoms, dredged (Albatross). 



San Francisco Bay, on South Belmont oyster beds, seine (Albatross}. 



San Francisco Bay, in San Pablo Bay, in Chinese shrimp nets (Albatross}. 



San Francisco Bay, off San Bruno Point, in Chinese shrimp nets (Al- 

 batross}. 



San Francisco market (R. E. C. Stearns). 



Monterey (D. S. Jordan). 



Catalina Island (Albatross}. 



San Diego (H. Hemphill; D. S. Jordan; Albatross}. 



San Diego Bay, 5^-12 fathoms (Albatross stations 3574, 3581, 3582, 

 3621). 



Station 3674 of Albatross (locality not given), 31 fathoms. 



San Geronimo Island, Lower California, 7 fathoms (A. W. Anthony). 



Mogi, Japan (Dr. F. C. Dale, U. S. S. Palos, June 18, 1881); one speci- 

 men without chelipeds, which otherwise corresponds closely with the 

 American form ; probably, however, distinct from C. affinis De Haan 

 and C. propinquus Stimpson. 



Monterey (Owen, as C. vulgaris}. 



CRANGON NIGROMACULATA Lockington. 



Distribution. From northern California to Lower 

 California, 3-33 fathoms. 



Specimens in the National Museum range from Gulf of 

 nigro'macuiata. chela the Farallones to San Diego, California ; also found at 



of S ( X 2l). Station . ' 



3132- Turtle Bay, Lower California. 



CRANGON ALASKENSIS Lockington. 



Crangon alaskensis LOCKINGTON, Proc. Calif. Acad. Sci., vii, 34 [7], 1876 

 (1877). Mutiny Bay, Alaska. 



Differs from C. nigricauda as follows : The antennal scale is a little 

 longer and much narrower distally ; the end of the blade is rounded and 

 not produced at the antero-internal angle; the spine is 

 much longer, extending considerably beyond the blade. 



K \ The first pair of feet are shorter, reaching 



\K ^J only to the middle of the terminal segment 



of the maxillipeds; the hands are more * 



FIG. 5*. Cran- v . , A ' 



gon alaskensis. slender and elongate, being from two and a 



Chela of ?(X3)-, ., . ., . ' ., 4 , . FIG. 53- Grange* 



station 3652. half to three times as long as wide; their alaskensis. s. station 



j'i ... /. . i f i 3 2 43- a - Dorsal view 



distal margin is more oblique, forming an angle of about of rostral region (x 



, - f . , , \ , . . a. *. Acicle ( X 2). 



forty-five degrees with the lengthwise margins. 



Dimensions. Length of large egg-bearing female from Kulukak Bay, 



