62 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. 



The range of this species is remarkable, extending as it does geo- 

 graphically from lat. 9° 3' 24" N. and from long. 79° 37' E. (according 

 to Kcehler) to lat. 54° 33' 30" N. and to long. 130° 34' W., and 

 bathymetrically from 53 fathoms to 876. But Koehler'^ has made a 

 serious blunder in saying that the species was taken by the Challenger 

 ''entre les iles Philippines et les iles Carolines," for the only recorded 

 Challejiger station is 232, not far from Yokohama, Japan. 



OPHIURA IMBECILLIS. 



Ophiogh/pha iinbecillis Lyman, Bull. Miis. Comp. Zoul., vol. 5, 1878, p. 73. 

 Ophiura imbecillis Meissner, Bronn's Thierreichs, vol. 2, pt. 3, 1901, p. 925. 



Localities. — Albatross station 4918, Eastern Sea, lat. 30° 22' N.; 

 long. 129° 8' 30" E., 361 fathoms, gray sand, globigerina; broken 

 shells, bottom temperature 42.7°, 1 specimen; station 4957, off 

 Eastern Japan, lat. 32° 36' N.; long. 132° 23' E., 437 fathoms, green- 

 brown mud, fine gray sand, foraminifera, bottom temperature 39.8°, 

 1 specimen; station 4968, off Japan, lat. 33° 24' 50" N.; long. 135° 

 38' 40" E., 253 fathoms, dark gray sand, brown mud, broken shells, 

 bottom temperature 45.7°, 1 specimen; station 5088, Sagami Bay, 

 lat. 35° 11' 25" N.; long. 139° 28' 20" E., 369 to 405 fathoms, green 

 mud, bottom temperature 41.8°, 7 specimens; station 5093, Uraga 

 Strait, lat. 35° 3' 15" N.; long. 139° 37' 42" E., 302 fathoms, coarse 

 black sand, bottom temperature 43.9°, 4 specimens. Bathymetrical 

 range, 253 to 437 fathoms. Temperature range, 45.7° to 39.8°. 

 Fourteen specimens. 



These specimens, which vary in disk diameter from 3^ to 7 mm., are 

 pale gray in color and show remarkably little diversity of structure. 



OPHIURA IRRORATA. 



Ophioglypha irrorata Lyman, Bull. Mus. Comp. Zool., vol. 5, 1878, p. 73. 

 Ophiogh/pha orbiculata Lyman, Bull. Mus. Comp. Zool., vol. 5, 1878, p. 74. 

 Ophioglypha grandis Verrill, Proc. U. S. Nat. Mus., vol. 17, 1894, p. 293. 

 OphioglyphatumulosaLvTK-E-N and Mortensen, Mem. Mus. Comp. Zool., vol. 23, 



1897, p. 120. 

 Ophioglypha involuta Kcehler, Ann. Sci. Nat. Zool. (8), vol. 4, 1897, p. 295. 

 Ophiura irrorata Meissner, Bronn's Thierreichs, vol. 2, pt. 3, 1901, p. 925. 



Localities. — Albatross station 3603, Bering Sea, lat. 55° 23' N.; 

 long. 170° 31' W., 1,771 fathoms, brown ooze, bottom temperature 

 35.1°, 2 specimens; station 3783, 40 miles off Copper Island, 1,567 

 fathoms, gray volcanic sand, green mud, 1 specimen; station 4956, 

 Inland Sea, Japan, lat. 32° 32' N.; long. 132° 25' E., 720 fathoms, 

 green-brown mud, fine gray sand, foraminifera, bottom temperature 

 37.5°, 1 specimen; station 4971, off eastern Japan, lat. 33° 23' 30" N. ; 

 long. 135° 34' E., 649 fathoms, brown-green mud, foraminifera, 

 bottom temperature 38.1°, 2 specimens; station 4979, off Japan, 



a Investigator, Deep Sea Oph., 1899, p. 19. 



