60 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. 



to distinguish baihybia easily. The numerous disk spinelets and 

 pits (where spines have been rubbed off) are very remarkable, but 

 similar spinelets sometimes occur, as has already been pointed out, 

 in leptoctenia, ljungmani, and quadrispina. 



OPHIURA FLAGELLATA. 



Ophioglypha flagellata LYMAN, Bull. Mus. Comp. Zool., vol. 5, 1878, p. 69. 

 Ophiuraflagellata MEISSNER, Bronn's Thierreichs, vol. 2, pt. 3, 1901, p. 925. 



Localities. Albatross station 2860, off southern Alaska, lat. 51 

 23' N.; long. 130 34' W., 876 fathoms, green mud, bottom tempera- 

 ture 36.5, 1 specimen; station 3338, Aleutian Islands, lat. 54 19' 

 N.; long. 159 40' W., 625 fathoms, green mud, sand, bottom tem- 

 perature 37.3, 1 specimen; station 3704, off Honshu Island, Japan, 

 94 to 150 fathoms, fine volcanic sand, 5 specimens; station 3784, 

 off Aleutian Islands, lat. 54 32' N.; long. 178 31' E., 85 fathoms, 

 green mud, fine gray sand, 11 specimens; station 4767, Bering Sea, 

 lat. 54 12' N.; long. 179 7' 30" E., 771 fathoms, green mud, bot- 

 tom temperature 36.5, 2 specimens; station 4768, Bering Sea, lat. 

 54 20' 30" N.; long. 179 9' 30" E., 764 fathoms, green-brown mud, 

 fine black sand, bottom temperature 37, 78 specimens; station 4774, 

 Bering Sea, lat. 54 33' N.: long. 178 45' E., 557 to 584 fathoms, 

 green mud, black specks foraminifera, 48 specimens; station 4775, 

 Bering Sea, lat. 54 33' 30" N.; long. 178 44' E., 584 fathoms, 

 green mud, black specks, foraminifera, bottom temperature 37.2, 1 

 specimen; station 4916, Eastern Sea, lat. 30 25' N.; long. 129 6' 

 40" E., 361 fathoms, gray sand, globigerina broken shells, bottom 

 temperature 42.7, 3 specimens; station 5049, off eastern Japan, 

 lat. 38 12' N., long. 142 2' E., 182 fathoms, dark gray sand, broken 

 shells, foraminifera, bottom temperature 37.8, 4 specimens; station 

 5079, off Omai Saki, Japan, lat. 34 15' N.; long. 138 E., 475 to 

 505 fathoms, pebbles, bottom temperature 39.1, 1 specimen; sta- 

 tion 5086, Sagami Bay, lat. 35 8' 15" N.; long. 139 20' E., 292 

 fathoms, green mud, coarse black sand, bottom temperature 43.7, 

 3 specimens; station 5088, Sagami Bay, lat. 35 11' 25" N.; long. 

 139 28' 20" E., 369 to 405 fathoms, green mud, bottom tempera- 

 ture 41.8, 1 specimen; station 5091, Uraga Strait, lat. 35 4' 10" 

 N.; long. 139 38' 12" E., 197 fathoms, green mud, coarse black 

 sand, pebbles, bottom temperature 47.6, 2 specimens; station 5092, 

 Uraga Strait, lat. 35 4' 50" N.; long. 139 38' 18" E., 70 fathoms, 

 coarse black sand, bottom temperature 56.3, 2 specimens; station 

 5093, Uraga Strait, lat. 35 3' 15" N.; long. 139 37' 42" E., 302 

 fathoms, coarse black sand, bottom temperature 43.9, 2 specimens; 

 station 5094, Uraga Strait, lat. 35 4' 42" N.; long. 139 38' 20" 

 E., 88 fathoms, black sand, broken shells, bottom temperature 54.8, 



