252 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 21 



Preorbital spine present. Basal antennal [article] rather narrow, with a 

 small spine at the anteroexternal angle, the two following [articles] com- 

 pressed and not concealed by the rostrum. Merus of the maxillipeds 

 distally truncated. Chelipeds in the male well developed, the hand com- 

 pressed and carinated above; fingers acute. Legs moderately long, sub- 

 cylindrical, the first pair not greatly exceeding the others in length; 

 dactyls short and acute. 



Abdomen seven- [segmented] [in both sexes]. (Holmes) 

 Range: Eastern Pacific from Kodiak, Alaska, to San Carlos Point, 

 Lower California, Mexico ; shore to 62 fathoms. Western Pacific : coast 

 of Japan; shore to 166 fathoms. (Yokoya, 1933) 



Scyra acutifrons Dana 

 Plate P, Fig. 1 ; Plate 27, Fig. 1 



Scyra acutifrons Dana, 1851a, p. 269; 1852, p. 95; 1855, pi. 2, figs. 



2a-d. Stimpson, 1857b, p. 455. Lockington, 1877c, p. 69. S. I. 



Smith, 1880, p. 210. Miers, 1886, p. 62. Rathbun, 1893a, p. 88; 



1904, p. 175; 1925, p. 195, pi. 79; pi. 224, figs. 4, 5, text-fig. 79; 



1926, p. 24. Newcombe, 1893, p. 21; 1898, p. 76. Caiman, 1898, 



p. 260. Walker, 1898, p. 274. Doflein, 1899, p. 183. Holmes, 1900, 



p. 41. Weymouth, 1910, p. 33, pi. 6, fig. 17. Taylor, 1912, p. 210. 



Hilton, 1916, p. 72. Way, 1917, p. 371, fig. 27. Schmitt, 1921, p. 



214, text-figs. 134a, 134b. Johnson and Snook, 1927, p. 374, fig. 



329. G. M. Smith, 1928, pp. 164, 165. Hart, 1930, p. 106; 1940, 



p. 99. Clemens, 1933, p. 51. Ricketts and Calvin, 1939, p. 93. 

 Scyra, sp. undt., Whiteaves, 1878, p. 471. (See S. I. Smith, loc. cit., 



above.) 

 Scyra acutifronus [for acutifrons], Taylor, 1912, p. 191. 



Type: Male, length 27.5 mm, width 18 mm, and female, cotypes, 

 figured by Dana, no longer extant. 



Type locality: Oregon, C. Pickering, U. S. Exploring Expedition, 

 collector. 



Localities subsequently reported, with collectors: Alaska: Kadiak 

 [Kodiak], W. G. W. Harford (Rathbun, 1893a). 



British Columbia: Queen Charlotte Islands: G. M. Dawson (New- 

 combe) ; S shore Houston-Stewart Channel, Kunghit Island (Hart, 

 1940). Banks Island (Taylor). Vancouver Island: "Vancouver Island" 

 (Miers) ; Esperanza Inlet and Nootka Sound (Hart, 1940) ; Ucluelet, 

 Geological Survey of Canada, and off Cape Beale, Albatross, 24-34 

 fathoms (Rathbun, 1925) ; Departure Bay (Taylor) ; Sidney, 10-20 



