206 U.S. NATIONAL MUSEUM BULLETIN 293 



Ophiura atacta H. L. Clark 



U.S. National Museum Bulletin 75, p. 85, fig. 27, 1911. 



Ho lo type: 



USNM 25533 (dry). Albatross Sta. 3338, off Shumagin Bank, Alaska, 

 625 fms., Aug. 28, 1890. 



Ophiura bathybia H. L, Clark 



U.S. National Museum Bulletin 75, p. 58, fig. 14, 1911. 



Holotype: 



USNM 25611 (dry). Albatross Sta. 4766, off Koniuji Id., Bering Sea, 

 1766 fms., 1906. 



Paratypes: 



USNM 26024 (2 dry). Albatross Sta. 4766, see above. 



USNM 26136 (1 dry). Albatross Sta. 2859, east of Prince of Wales Id., 

 Alaska, 1569 fms., 1888. 



USNM 26196 (5 dry), Albatross Sta. 4761, off Pt. Farewell, Shumagin 

 Ids., Alaska, 1973 fms., 1906. 



USNM 26952 (25 alcohol), Albatross Sta. 4761, see above. 



USNM 33368 (19 alcohol). Albatross Sta. 3603, Bering Sea, SW of 

 Pribilof Ids., 1771 fms., Aug. 11, 1895. 



USNM 33371 (192 alcohol). Albatross Sta. 4761, see above. 



USNM 33388 (4 alcohol). Albatross Sta. 4766, see above. 



USNM 27034 (10 alcohol), Albatross Sta. 4766, see above. 



MCZ 2991 (1 dry), Albatross Sta. 4766, Bering Sea, 1766 fms. 



MCZ 2992 (2 dry), Albatross Sta. 3603, Bering Sea, 1771 fms. 



MCZ 3315 (31 Silcohol), Albatross Sta. 4761, S of Shumagin Ids., 1973 

 fms. 



Ophiura brachyactis H. L. Clark 



U.S. National Museum Bulletin 75, p. 87, fig. 28, 1911. 

 = Stegophiura brachyactis (see Matsumoto, 1915) 



Holotype: 



USNM 25548 (dry), Albatross Sta. 5023, off east coast of Saghalin Id., 

 Japan, 75 fms., Sep. 27, 1906. 



Paratype : 

 MCZ 2993 (1 dry), Albatross Sta. 5018, off Cape Tonin, Saghalin, 

 64 fms. 



