. Bulletin - United States National Museum. Science. 70 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM XANTHOCALANUS SUBAGILIS Wolfenden Figure 46 Xanthocalanus subaffilis Wolfenden, Journ. Marine Biol. Assoc, new ser., vol. 7, p. 118, pi. 9, figa 17, 32, 1904. Occurrence.—Five females from the trawl wings, Stations 2093, 2173, Albatross, south of Marthas Vineyard. Distribution.—North Atlantic (Wolfenden). Color.—Unrecorded for the living copepod; pre- served sj)ecimens are a uniform light yellowish brown. Femule.—Head separated from the first seg- ment; fourth and fifth segments fused, the pos-
. Bulletin - United States National Museum. Science. 70 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM XANTHOCALANUS SUBAGILIS Wolfenden Figure 46 Xanthocalanus subaffilis Wolfenden, Journ. Marine Biol. Assoc, new ser., vol. 7, p. 118, pi. 9, figa 17, 32, 1904. Occurrence.—Five females from the trawl wings, Stations 2093, 2173, Albatross, south of Marthas Vineyard. Distribution.—North Atlantic (Wolfenden). Color.—Unrecorded for the living copepod; pre- served sj)ecimens are a uniform light yellowish brown. Femule.—Head separated from the first seg- ment; fourth and fifth segments fused, the pos- terior corners sharply angular; metasome three and one-half times as long as urosome; terminal segment of fifth legs with three setae unequal in size, the middle one larger than the other two; inner margin of second segment smooth, of basal segment with a rounded knob at the distal corner, fringed with short hairs; posterior surface of end segment with a few scattered hairs. Total length, mm. Male.—Left fifth leg 4-segmented, the terminal segment with two apical processes, one fingerlike and fringed with short hairs, the other subspheri- ,„ ^ ,, cal and tipped with three unequal setae; right Figure 46.—Xatithoca- ^ '^ ^ 9 to latius suhagiiis: a, Fe- fifth leg 6-segmented, about as long as the left male fifth'^ie's^' ^ ^^^' ^^^ terminal segment long and needlelike. Total length, mm. Remarks.—With, in his report on the Copepoda of the Danish /7i(7(9Z/-Expedition, made this species a doubtful synonym of Van- hoffen's hirtipes, but the form of the fifth legs in both sexes distinctly separates the two. This is the first record of the species from Ameri- can shores. XANTHOCALANUS BOREALIS G. O. Sars Figure 47 Xanthocalanus borealis Sars, Norwegian North Polar Expedition, 1893-1896, vol. 1, no. 5, Crustacea, p. 49, pi. 11, 1900; Crustacea of Norway, vol. 4, p. 46, pis. 31, 32, 1901. Occurrence.—Three females from trawl wings, Station 1029, Fish Hawk
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