THE GKAPSOID CKABS OP AMERICA. 271 



Stridulating ridge of the male with three or four long smooth 

 tubercles near the middle, and granules or small tubercles at each 

 end; in the female the ridge is finely divided as in II. nudus. The 

 lobe at the distal end of the arm which bears the complementary 

 ridge is very prominent. Inner angle of wrist bluntly rounded. 

 Palm of male with hairy patch inside. Legs with margins hairy. 



Color. Dull gray mottled with ferrugineous spots. Spots on legs 

 small, but there may be blotches of considerable size on the carapace. 

 Very young occasionally marked with large blotches of white. 

 (Holmes.) 



Measurements. Male (2320), length of carapace 28.4, width of 

 same 34.7 mm. 



Range. From Prince William Sound, Alaska, to Gulf of Califor- 

 nia, Mexico. 



Material examined. 



Fox Island, Alaska; Harriman Alaska Exped. ; 1 male (23842). 



Sitka, Alaska : L. A. Beardslee ; 1 male (14807) . W. H. Dall ; 32 

 males, 34 females, 1 y. (14810). Albatross; 1 male (19347). 



Wrangel, Alaska; beach, low tide; July, 1882; Dr. W. H. Jones, 

 U. S- Navy, U. S. S. Wachusett; 2 males (5330). 



Alert Bay, Alaska; Feb. 22, 1882; Dr. W. H. Jones, U. S. Navy, 

 U. S. S. Wachusett; 17 males and females (5317). 



Klinquan, Prince of Wales Island, Alaska; June 17, 1897; Alba- 

 tross; 1 male (21790). 



Boca de Quadra, head of Mink Arm, Alaska ; July 6, 1903 ; Alba- 

 tross; 2 females (31594). 



Fort Eupert, Beaver Bay, British Columbia : June 25, 1903 ; Alba- 

 tross; 1 female (31672). Between high and low tide lines, among 

 seaweed, kelp, etc.; Harlan I. Smith; 2 males, 1 female (22590). 



Comox, British Columbia; 1893; Albatross; 80 specimens (18295). 



Union Bay, Bayne Sound, British Columbia ; May 14, 1906 ; Alba- 

 tross; 62 males, 61 females (44499). 



Denman Island, British Columbia; 1914; Albatross: North end, 

 on shore, between tide marks; Apr. 18; 18 males, 8 females (2 ovig.) 

 (49908) . North side ; May 12 ; 17 males, 8 females (3 ovig.) (49906) . 



Gabriola Island, Taylor Bay, British Columbia; June 20, 1903; 

 Albatross; 8 males, 3 females (31591). 



Nanaimo Bay, British Columbia ; shore ; June 19, 1903 ; Albatross; 

 2 males (31593). 



Nanaimo, British Columbia: July 10, 1888; Albatross; 2 males 

 (15529). Beach; Aug.* 2, 1897; Harlan I. Smith; 3 males, 4 females 

 (21366). 



Victoria Harbor, British Columbia; 1 specimen (14466). 



