iS) 
N 
CRUSTACEA COPEPODA. II. 
Distribution. — At Vads6, eastern Finmark, about 60 fath., in Phallusia obliqua (G. O. Sars) ; 
in Navit Fjord, Finmark, 15—30 fath., in Phallusia mentula, and at Spitzbergen, in Phallusia sp. (Auri- 
villius). In all cases the animals were found in the branchial cavity. 
Enterocola vy. Beneden. 
Of this interesting genus only a single species has been found in our area. 
31. Enterocola setifera n. sp. 
(Pl. III, figs. 3 a—3 1.) 
Female. — Seen from below rather similar to EF. fulgens v. Ben. as figured by Canu (1892), but 
differs especially in antennule, antenne, the shape and armature of the endopod of the four anterior pairs 
of thoracic legs, and in the equipment with sete of fifth legs. 
The antennule (fig. 3 a) are very oblong-triangular, 4-jointed, as the distal two-fifths show three 
rather distinct articulations, but the proximal part exhibits vestiges of a few rudimentary articulations; 
the whole anterior margin is equipped with a number of strong, nearly spiniform sete, and the end bears 
some fine sete. — Antenne (fig. 3 b) 3-jointed; the two proximal joints thick, and the first joint has at its 
front angle a small protuberance terminating in a somewhat short, very thick seta which is broad to the obtuse 
end; terminal joint moderately slender with a strong, curved spine and a couple of small setae on the end. 
— Maxillule (? or maxille) with the distal lobe well developed; its terminal margin (fig. 3 c) is convex and 
behind the middle with an incision, in which is seen a somewhat protruding piece as a kind of joint and ter- 
minating in 4 strong spines, while the margin of the lobe itself has 6 spines, 4 of which in front of the “joint”’. 
— Maxillipeds (figs. 3 d and 3 e) very thick; the terminal joint is bent inwards and has 3 robust spines on 
the end; on the inner side of the maxilliped is found a proximal, small, slender and protruding lobe termin- 
ating in 2 spines. 
The four anterior pairs of legs subsimilar in structure; each pair with a narrow median piece between 
the two sympods (fig. 3 g). First pair considerably more narrow than the second, while the third is distinctly 
broader than the second and a little less broad than the fourth (fig. 3 g). In all pairs the endopod is a rounded 
plate, in first pair (fig. 3 f) more than twice as long as broad, in second pair somewhat and in fourth pair 
slightly, longer than broad; the broadly rounded end has on first pair two moderately large spines not tapering 
to the rounded end, and besides a third much shorter and thinner spine of similar shape; in fourth pair (fig. 3 g) 
the two terminal spines are much smaller than on first pair, while the third spine is wanting; second and 
third pairs of legs as to spines intermediate between first and fourth pair. Exopod in all pairs oblong-triangular, 
with the end acute and bearing a minute, thick spine. — Fifth pair, which originates on the anterior free 
margin of the plate covering the eggs, is a small, oblong piece with some sete (fig. 3 h) towards the end; 
two among these sete are extremely long, and the longest one reaches even nearly beyond the posterior 
margin of the covering plate. It may be added that about at the middle of the posterior margin of this plate 
a conspicuous seta is observed. 
The caudal rami (fig. 31) are very oblong, with a few short setee on the rounded end. 
Length 2.9 mm. 
