THE GKAPSOID GRABS OF AMERICA. 145 



Union Bay, Vancouver Island, British Columbia ; in clams, Saxi- 

 domus, probably giganteus: Apr. 16, 1914; steamer Albatross; 1 

 male, boiled (48428). 



British Columbia; 1916; C. McLean Fraser: Brandon Island, in 

 Schizothacrus; May 18 ; 13 males, 10 females ovig., " of a dirty brown 

 color" (49601); 9 males, 5 females ovig., "light-colored" (49602). 

 Kanaka Bay; in Schizothaerus ; May 29; 1 male ovig. (49603). Pro- 

 tection Island; May 29; 5 males, 4 females ovig., in Schizothaerus 

 (49604) ; 2 y., in Mya (49605). Echo Bay, Newcastle Island; May 

 30; 16 males, 18 females (16 ovig.) in Schizothaerus (49606) ; 1 male 

 in Mya (49607). Snake Island; in Schizothaerus; May 22; 1 male, 

 1 female ovig, (49608). Taylor Bay; in Schizothaerus; Apr. 5; 1 

 female ovig., "entirely white" (49609) ; both hands have been bitten 

 off in the same place, a short distance from the carpus. South side 

 of Mudge Island; in Schizothaerus; May 31; 19 males, 10 females 

 (7 ovig.) (49610). False Narrows; in Schizothaerus; May 19; 33 

 males, 31 females ovig. (49611). 



British Columbia ; in Schizothaerus nuttallii; Geological Survey of 

 Canada; 2 males, 1 female ovig. (40400). 



Simeahmoo, Puget Sound; Dr. C. B. R. Kennerly, North western 

 Boundary Survey; received from Smithsonian Institution; 1 male, 

 1 female ovig. (1316, M. C. Z.). 



Quarantine Dock, Washington; from clam; 1903; collected by 

 sailors of steamer Albatross; 2 males, 4 females (3 ovig.) (31599). 



Port Orchard, Puget Sound, Washington; from Schizothaerus 

 nuttallii; July, 1889; O. B. Johnson; 4 males, 7 females (6 ovig.) 

 (15107). 



Quartermaster Harbor, Vashon Island, Puget Sound ; from mantle 

 of clam; Oct. 30, 1905; steamer Albatross; 1 female (48430). 



Puget Sound, at Rosedale, Pierce County, Washington; in horse 

 clam; Aug. 16, 1906; 2 males, 3 females (1 ovig.) (Stanford Univ.). 



Yaquina, Oregon; Oregon State Agricultural College. Corvallis; 1 

 female (21619). 



Humboldt Bay South, California, in Tapes; June 1, 1911 ; W. F. 

 Thompson; 1 male, soft shell, 1 female (Stanford Univ.). 



PINNIXA LITTORALIS Holmes. 



Plate 31, figs. 5-8. 



Pinnixa littoralis HOLMES, Proc. California Acacl. Sci., ser. 2, vol. 4, 1894, 

 p. 571, pi. 20, figs. 14-10 (type-locality, near Fort Bragg, Bodega Bay, 

 California; cotype male, Cat. No. 20859, U.S.N.M.) ; Occas. Papers Cali- 

 fornia Acad. Sci., vol. 7. 1900, p. 91. RATHBUN, Harriman Alaska 

 Exped., vol. 10, 1904, p. 188. WEYMOUTH, Leland Stanford Jr. Univ. 

 Pub!., Univ. Ser. No. 4, 1910, p. 58 (part; not text-fig. 5 nor examples 

 from Puget Sound). 

 658G3 17 10 



