THE CANCROID CRABS OF AMERICA 467 



the latter separated by a smooth sulcus from a subconical tubercle; 

 three posterior teeth on antero-lateral margin prominent, the last 

 two curved forward, the first obtuse and gene -all j more or less bifid; 

 from it a row of two or three tubercles exte adi forward below the 

 margin; usually there is a small tooth behind the one at antero-lateral 

 angle. 



Chelipeds stout, more or less unequal; carpus covered with promi- 

 nent, rounded, smooth, glossy, rose-colored tubercles. Hand oblong, 

 longer than wide, upper and outer surface covered with tubercles 

 like those on carpus, arranged in seven or eight longitudinal rows; 

 fingers stout, gaping in major chela, almost meeting in smaller. 



Color. — Uniform dark red, lighter below; fingers black, the black 

 not extending back upon hand. 



Measurements. — Ovigerous female (23920), total length of carapace 

 25.2, width 42 mm. 



Range. — Monterey Bay, California, to Magdalena Bay, Lower 

 California. Beach to 55 fathoms. Abundant under stones between 

 tides and also in kelp holdfasts from deeper water. 



Material examined. — 



CALIFORNIA. — Monterey Bay; under rocks, low tide mark to 

 mean tide; Harold Heath; 1 male (22871). 



Monterey; Henry Hemphill; 1 female (3290). 



Pacific Grove: John C. Brown; 5 specimens (23920). Ida S. 

 Oldroyd; 1918; 1 male, 5 females (54011). 



Venice breakwater; Venice Marine Biological Station: 1 female 

 (45580). October 29, 1913; P. S. Barnhart, Anton Dohrn; 2 males 

 (50191); 1 male (50292). 



Point Vincent; from rocks; 1918; H. N. Lowe; 10 specimens 

 (51125). 



San Pedro; E. P. Chace: December 15, 1918; 1 male, 1 female 

 (54000). May 4, 1919; 1 female, 1 young (53904). 



San Pedro; Anton Dohrn, Venice Marine Biological Station: Foot 

 of breakwater, February 21, 1913; 1 male (50192). Portuguese 

 Bend; Kttoral; June 26, 1914; 1 male, 1 female (50196). 



San Pedro; H. N. Lowe; 1 female (19733). 



Long Beach; H. N. Lowe; 3 males, 2 females (50546). 



Seal Beach, south of Long Beach; March 2, 1919; E. P. and E. M. 

 Chace; 2 young (53999). 



Laguna Beach; W. A. Hilton; 1 young (50594); 1 male (48992). 



Catalina Harbor, Santa Catalina Island; W. H. Dall: 40 to 60 

 fathoms; 1 young (4279). 1874; 30 to 40 fathoms; sandy mud; 2 

 females (14749). 1874; beach; 6 males, 2 females (14750). 



Santa Catalina Island; Anton Dohrn, Venice Marine Biological Sta- 

 tion: Catalina Harbor; April 1, 1915; 1 male (50293). West shore, 

 Catalina Harbor; December 28, 1912; 1 male, 3 females (50193). 



