114 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, 333 fathoms. 



Specimens in the National Museum range from Gulf of 

 nigromacuiata. Chela the Farallones to San Diego, California; also found at 



of 9 ( X 2). 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. nigricaiida 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. .C yY/* 



<- \ The first pair of feet are shorter, reaching J^ ^x 



\Vv ' only to the middle of the terminal segment / A \ 



of the maxillipeds; the hands are more """ 



FIG. 52. Cran- . . , , 



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



Chelaof ?(X3$)-, ,, , , ., , . FIG. 53. Crangon 



station 3652. half to three times as long as wide; their alaskensis. 9. station 



,. , . . ... - . , , , 3243- a. Dorsal view 



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



. H . 6 . * a . 6. Acicle (X 2). 



forty-five degrees with the lengthwise margins. 



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



