NORTH PACIFIC OPHIUBANS 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 Icinbergi LJUNGMAN, Ofv. Kong. Akad., 1866, p. 166. 

 Ophioglypha sinensis LYMAN, 111. Cat. Mus. Comp. Zool., vol. 6, 1871, p. 12. 

 Ophiura Jcinbergi 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 16' 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 Kcehler a in regarding 

 sinensis as a synonym of Jcinbergi. The Albatross 

 specimens have been compared with Lyman's 

 type of sinensis and are unquestionably identical ; 

 other specimens from Australia (including what 

 seems to be a cotype of Icinbergi}, Japan, Hong- 

 kong, the Philippines, and Calcutta have also 

 been available for comparison. Australian speci- 

 mens have the oral shields relatively larger than FlG . 9 ._ O pHiuRA KINBERGI. 

 specimens from Japan, but the specimens from x 5. SHOWING DISK SCAL- 

 the Philippines are intermediate and I do not 

 think the character warrants keeping sinensis and Icinbergi separate. 



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

 seemed desirable to figure it herewith (fig. 9) , as it is this character 

 which specially distinguishes Icinbergi from the two following species. 



OPHIURA SARSII. 



Ophiura sarsii LUTKEN, Vid. Medd. for 1854, 1855, p. 101. 



Localities. Albatross station 2841, off 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, gray 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. 



