478 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.21 



57 mm, merus 25 mm, manus 28.7 mm, dactyl 7.5 mm, height of palm 

 9.4 mm. Female specimen (not largest) : length 17.3 mm, width 

 26.8 mm. 



Color in life: Tips of tubercles white, ridges bearing tubercles light 

 purplish, remainder of carapace mottled with numerous minute spots of 

 white and purplish, giving a pink effect which often closely approaches 

 white. Ambulatory legs usually a light yellow. (Weymouth) 



Habitat: Of 89 stations for which data on bottom type are available: 

 49 were sand, with shell present in 10, algae in 8, gravel in 4, mud in 3, 

 and nullipore in 1 ; 18 were mud, with sand in 7; 11 were rock, with 

 kelp in 4, mud in 2, and sand, shell, and nullipore present in 1 each; 

 6 were algae alone ; 3 were shell, with mud in 2 and algae in 1 ; and 

 2 were coralline, with sand in 1. Sponge, worm tubes, and sea urchin 

 associations are frequently noted in the station data. 



Depth: Collected once intertidally. Normally 4-57 fathoms; excep- 

 tionally to 69 fathoms (off San Clemente Island), to 77 fathoms (off 

 Santa Cruz Island), and to 95 fathoms (Outer Gorda Bank). 



Size and sex: Males are from 6.0 to 21.0 mm, females from 6.0 to 

 17.3 mm, ovigerous females from 11.6 to 16.6 mm, and young to 3.5 

 mm. (See Remarks) 



Breeding: Ovigerous females have been taken in February at San 

 Diego, when 38 of 44 females were with ova, and in April off Newport 

 Beach, when 51 of 51 females were in this condition. Other months and 

 localities include March (Long Beach, Cedros Island), April (Hunting- 

 ton Beach), May (Portuguese Point), July (Long Beach), August 

 (White Cove, Santa Catalina Island; Bechers Bay, Santa Rosa Island; 

 Redondo, El Segundo, Monterey Bay, Half Moon Bay) ; September 

 (Santa Barbara). 



Remarks: The extensive series has not been exhausted of informa- 

 tion. Some random observations are these: The species is most abundant 

 off Huntington Beach and in Newport Harbor. There are many large 

 males in the 20 mm range, but none is over 21 mm. In several lots exam- 

 ined, all or nearly all females are ovigerous. Young under 10 mm were 

 considered immature; however, specimens could be sexed to 5 mm. A 

 sharp rostrum occurs frequently. Older specimens show encrustation with 

 barnacles on carapace and chelipeds. 



The range of the species is extended southward along the Lower 

 California coast from Los Coronados Islands to Punta Eugenio. The 

 occurrence at Outer Gorda Banks off Cape San Lucas is extralimital and 

 exceptional, as is Lockington's record for Boca de las Piedras, Sinaloa. 



