150 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.21 



Chionoecetes opilio (O. Fabricius) 

 Plate I, Fig. 5 ; Plate 14 



Cancer phalang'wm O. Fabricius, 1780, p. 234. Not C. phalangium J. C. 



Fabricius, 1775, p. 408. 

 Cancer opilio O. Fabricius, 1788, p. 182, plate. 



Chionoecetes opilio, Kroyer, 1838, p. 249. Smith, 1879, p. 41. Murdoch, 

 1885, p. 137. Rathbun, 1893a, p. 74, pi. 4, figs. 5-7 (part: not Brit- 

 ish Columbian material; not all Alaskan material) ; 1904, p. 174; 

 1919, p. 10A; 1925, p. 233, pis. 84, 85, text-figs. 88, 89. Holmes, 

 1900, p. 39. Van Winkle and Schmitt, 1936, p. 330. Garth, 1957, 

 p. 31. Not C. opilio, Newcombe, 1893, p. 20; 1898, p. 76. Not C. 

 opilio, Taylor, 1912, pp. 191, 209. 

 Chionoecetes behringianus Stimpson, 1857a, p. 84; type locality, off Cape 

 Romanzoff, Alaska, 30 fms. ; cotypes U.S.N.M. Nos. 2031, 53041, 

 and M.C.Z. No. 1875; 1857b, p. 449; 1857c, p. 217; 1907, p. 8. 

 Lockington, 1877c, p. 64. 

 Peloplastus pallasii Gerstaecker, 1856, p. 105, pi. 4 [not 1] ; type locality, 

 Asiatic Sea; female holotype in Berlin Museum (published April, 

 1857, fide Stimpson, 1907). 

 Chionoecetes chilensis Streets, 1870, p. 106; type locality, Chile; type not 

 extant. Rathbun, 1910, p. 572. 



Type: Not in Copenhagen Museum; doubtfully extant. (Stephensen, 

 in Rathbun, 1925) 



Type locality: Greenland. 



Eastern Pacific localities subsequently reported, with collectors (ex- 

 cluding southern records withdrawn in 1924 as Chionoecetes bairdi) : 

 Alaska: Bering Strait, Captain Rodgers, North Pacific Exploring Ex- 

 pedition (Stimpson, 1857c) ; mouth of Port Clarence, 7-12 fathoms, 

 W. H. Dall (Rathbun, 1893a) ; off Cape Romanzoff, 30 fathoms, Wm. 

 Stimpson, North Pacific Exploring Expedition (Stimpson, 1857a, 1857b, 

 types of Chionoecetes behringianus, cotypes labeled "Russian America"), 

 (Lockington, 1877b) ; northwest of Nunivak Island, 24 and 25.5 

 fathoms, G. M. Stoney, U.S.N., northwest of Pribilof Islands, 20-52 

 fathoms, southeast of Pribilof Islands, 51 and 75 fathoms, and between 

 Pribilof Islands and Bristol Bay, 29.5 and 36 fathoms, Albatross (Rath- 

 bun, 1893a, 1925). Aleutian Islands: Iliuliuk Harbor, Unalaska, 85 

 fathoms, and north of Unimak Island, 49 and 61 fathoms, Albatross 

 (Rathbun, 1893a, 1925). Alaska Peninsula: Off Khoudoubine [Kudo- 

 bin] Islands, 41-53 fathoms, Albatross (Rathbun, 1893a, 1925). Speci- 

 mens from Yakutat, in cod's mouth, and Juneau, 20-50 fathoms (Rath- 



