. Bulletin - United States National Museum. Science. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of the terminal spine. Total length,
. Bulletin - United States National Museum. Science. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of the terminal spine. Total length, mm. Male.—Body smaller than that of the female, without a crest; pos- terior corners of fifth smoothly rounded; basipods of left fifth leg elongate and cylindrical, the rami 3-segraented, the exopod longer than the endopod; second basipod of right fifth leg spherically swollen proximally, strongly narrowed distally; endopod 1-segmented, less than one-third the length of the narrowed part of the second basipod; exopod 2-segmented, the end segment slenderandcurvedinto a hook at the tip without articulation. Remarks.—These specimens were mixed with those of another genus from the same station and thus es- caped Eathbun's attention, so that he made no notes on their color. They have never before been reported from the American side of the Atlantic. SCAPHOCALANUS OBTUSIFRONS (G. O. Sars) Figure 54 Amallophora odtusifrons Sars, Bull. Mus. Oc^anogr. Monaco, no. 26, p, 22, 1905. Scaphocalanns oMusifrons With, Danish /nf/o?/-Expedition, vol. 3, pt. 4, Copepoda 1. p. 194, figs. 60, 61, pi. 7, fig. 9, a-d, pi. S, fig. 8, a^e, 1915. Occurrence.—A single female from the trawl wings, Station 2230, Alba- tross., south of Long Island. Distribution.—North Atlantic (Sars, Farran); South Atlantic (Wolfen- den); Denmark Strait, Iceland, Faroe Channel (With) ; Malay Arch- ipelago (A. Scott) ; Gulf of Maine (Bigelow).. Figure 54.—Scaphocalanns frons: a. Female, fifth legs oMusi-
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
