16 CRUSTACEA COPEPODA. II. 
those in B. caudatus in having the terminal joint only a little longer than the third; besides one of the terminal 
setee is rather long, the other quite short. — The sipho reaches about to the middle of first free segment, is 
consequently longer than in B. caudatus. — In the maxillule the outer ramus is considerably longer than the 
inner, and one of its terminal spines seems to be longer than the ramus and only somewhat shorter than the 
other terminal spine; inner ramus with its terminal bristle longer than in B. caudatus. — Maxille (fig. 3 c) 
with the dactylus somewhat longer than the proximal portion, slender; the adornment towards its end (fig. 3 d) 
is most peculiar, showing a rather long lateral spine and slightly beyond its insertion a marginal tooth, further- 
more a lateral row of teeth beginning near the middle of the spine, terminating beyond its end, and the teeth 
increase gradually in size in the distal direction; on the most distal part of the dactylus is seen a longitudinal 
lateral row of triangular teeth, and besides a short row of 5 spines close together on the margin, while the 
claw does not show any adornment; in B. caudatus the spine and the marginal tooth are drawn by Sars, but 
his figure does not allow a closer comparison. — Maxillipeds (fig. 3 f) differ from those in B. caudatus in having 
the claw much longer than the preceding joint, while in that species the claw is slightly longer than the 
unusually long terminal joint. (The natatory legs are so mutilated that a comparison is impossible.) 
Length 2.29 mm. 
Occurrence. — Taken by the “Ingolf’”’ at a single station. 
Denmark Strait: Stat. 90: Lat. 64°45’ N., Long. 29°06’ W., 568 fathoms, temp. 4°4; 1 female. 
16. Bradypontius unidens n. sp. 
(Pl. II, figs. 4 a—4 g.) 
Male. — Cephalothorax twice as long as abdomen, caudal rami included (fig. 4a). Head some- 
what more than twice as long as the thoracic segments and somewhat broader than long, with the postero- 
lateral corners very feebly produced. The thoracic segments decrease in the median line slightly in length 
from the first to the third, and these segments have their tergites strongly, nearly semicircularly, curved, 
and their lateral parts are strongly produced with the angles acute. — In the abdomen (fig. 4b) third and 
fourth segments are rather short, together about as long as the terminal segment, which is distinctly broader 
than long and as long as the caudal rami. 
Antennulee (fig. 4 c) consist probably of 12 joints (the number cannot be stated with certainty because 
the eleventh joint is somewhat damaged) ; second joint slightly longer than the first, with 3 sensory filaments; 
third to eighth joint short, and each, excepting the fourth, with a filament; ninth joint with 2 sensory fila- 
ments, on the outer margin with a rather long and strong spine slightly before the middle, and beyond that 
spine 3 small spines, the two more proximal shaped as teeth, while the third is normal. — Antenne and 
maxillule mutilated. — The sipho reaches to the front margin of first free segment; its proximal part is 
uncommonly slender, but not narrowed in front. — Maxillee (fig. 4 d) with the dactylus long and slender; 
this joint has a good-sized lateral spine considerably before the end (fig. 4 e), but no conspicuous tooth or 
tubercle, and the most distal part has a little from the concave margin a long row of 13 acute denticles; the 
claw has near the margin 11 fine denticles arranged in a long row, which begins somewhat beyond the base. 
— Maxillipeds (fig.'4 f) with the claw as long as the whole dactylus. — Fourth pair of thoracic legs (fig. 4 g) 
