18 CRUSTACEA COPEPODA. II. 
side and a little in front of the rather large process a somewhat long and strong spine is inserted on a tubercle; 
the claw has no denticles. — Maxillipeds (fig. 5 e) with the claw as long as the whole dactylus; first joint 
of the proximal part with a row of several long hairs on the margin; second joint with a row of shorter hairs 
at the middle of the outer margin. — Fourth pair of legs has the endopod shorter and more narrow than the 
exopod, though broader than in any species of Bradypontius. — Fifth legs with the free joint rather long 
(fig. 5 f), though somewhat shorter than the segment; the joint is slender, several times longer than thick, 
with 2 terminal sete, and a somewhat shorter though yet rather long seta on the outer margin. 
Length 1.6 mm. ; 
Occurrence. — Taken by the “Ingolf” at a single station. 
Davis Strait: Stat. 32: Lat. 66°35’ N., Long. 56°38’ W., 318 fathoms, temp. 3°9; 1 mutilated female. 
Parartotrogus T. & A. Scott. 
Of this very interesting genus one species has been found in our area. 
18. Parartotrogus arcticus (T. Scott), G. O. Sars. 
(Pl. II, figs. 6 a—6 d.) 
1901. Parartotrogus Richardi, var. arcticus 'T. Scott, Ann. Mag. Nat. Hist. S.7, Vol. VIII, p. 352, Pl. VI. 
!IQ15. — arcticus G. O. Sars, Account, Vol. VI, p. 136, Pl. LX XIX. 
The single female agrees with Sars’ figures and description in most features, especially in such impor- 
tant points as the joints in the antennule, and three joints in the endopod of third legs; the few differences 
observed may be noted. 
The antennee (fig. 6 c) are a little more slender, their exopod a little shorter in proportion to the third 
joint, and the hook-shaped very thick spine on fourth joint is larger than in Sars’ figure. — In the maxillee 
(fig. 6 d) the curvature of the terminal claw differs considerably from Sars’ figure, but this may, as least partly, 
be due to some casual fact, as the claw drawn by Sars has either been somewhat anomalous or is turned in a 
way producing an anomalous aspect; the claw on my specimen agrees more with Scott’s figure. — The rudi- 
mentary fourth leg (fig. 6 a) has two sete very different in length and a third seta on the posterior margin, 
while Sars has only the two terminal setee nearly equal in length and no posterior seta; fifth leg (fig. 6 a) 
has not only the two terminal setee, but besides on both legs two well developed setze near one another near 
the base of the posterior margin, thus agreeing with Scott’s figure, while Sars has the two terminal setze 
and on the hind margin a single seta; finally both Sars and Scott figure these legs shorter and considerably 
broader than they are in my specimen. — Furca (fig. 6 b) is anomalous in my specimen; the right ramus is 
a tiny triangle, while the left ramus is normally shaped, but it is a little shorter than the terminal segment 
and possesses a single moderately long seta, which has its proximal part swollen and a secondary outer branch 
a little from the base. — Length 0.81 mm. 
Occurrence. — Not gathered by the “Ingolf’, but by the Ryder Expedition in 18or. 
Off East Greenland: Lat. 72°27’ N., Long. 19°56’ W., about 100 fathoms; 1 female. 
