NORTH PACIFIC OPHIURANS IN NATIONAL MUSEUM CLARK. 37 



of the genus less, rather than more, difficult. In the arrangement 

 of the species I have followed the "Key" in Lyman's Challenger 

 report, interpolating the new species, so far as possible, among their 

 natural allies. 



OPHIURA KINBERGI. 



Ophioglypha Mnhergi Ljungman, Ofv. Kong. Akad., 1866, p. 166. 

 OpMoglyphn sinensis Lym.\n, 111. Cat. Mus. Comp. Zool., vol. 6, 1871, p. 12. 

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



Localities. — Albatross station 3725, off Noma Saki, Japan, 13 fath- 

 oms, sand, shells, gravel, 3 specimens; station 3726, off Japan, 26 

 fathoms, gray volcanic sand, 6 specimens; station 4815, sea of Japan, 

 lat. 38" 1 6' N. ; long. 138° 52' E., 70 fathoms, dark green sand, bottom 

 temperature 51°, 2 specimens; station 4885, Eastern Sea, lat. 32° 31' 

 30" N.; long. 129° 30' 15" E., 53 fathoms, dark gray sand, broken 

 shells, 2 specimens. Bathymetrical range, 13 to 70 fathoms. Thir- 

 teen specimens. 



I can but agree with Koehler« in regarding 

 sinensis as a synonym of Icinhergi. The Albatross 

 specimens have been comjjared with Lyman's 

 type of sinensis and are unquestionabl}" identical ; 

 other specimens from Australia (including what 

 seems to be a cotype of Hn6f?'^i), Japan, Hong- 

 kong, the Philippines, and Calcutta have also 

 been available for comparison. Australian speci- 

 mens have the oral shields relatively larger than Fio.g.-oPHnniAKiNBEEGi. 

 specimens from Japan, but the specimens from x ;;. showing disk rcal- 

 the Philippines are intermediate and I do not '^^ ^^^ ^^''^ *^°"''' 

 think the character warrants keeping sinensis and Jcinbergi separate. 



As the arm comb of this species has never been figured, it has 

 seemed desirable to figure it hereA\'ith (fig. 9) , as it is this character 

 which specially distinguishes Mnbergi from the two following species. 



OPHIURA SARSII. 



ophiura sarsii Lutken, Vid. Medd. for 1854, 1855, p. 101. 



Localities. — Albatross station 2841, oft' Alaska, lat. 54° 18' N.; 

 long. 165° 55' W., 56 fathoms, pebbles, bottom temperature 41°, 

 192 specimens; station 2842, off Alaska, lat. 54° 15' N.; long. 166° 3' 

 W., 72 fathoms, pebbles, bottom temperature 41°, 37 specimens; 

 station 2843, off Alaska, lat. 53° 56' N. ; long. 165° 56' W., 45 

 fathoms, broken shells, pebbles, bottom temperature 43.5°, 3 speci- 

 mens; station 2844, off Alaska, lat. 53° 56' N.; long. 165° 40' W., 

 54 fathoms, grav sand, bottom temperature 42°, 63 specimens; 

 station 2845, off Alaska, lat. 54° 5' N.; long. 164° 9' W., 42 



aSiboga Litt. Oph., 1905, p. 22. 



