7O CRUSTACEA COPEPODA. II. 
in front of the base of the antennule the lateral, protruding border of the head is equipped with a row of 
somewhat short hairs, but towards the posterior end of this border one finds a lateral patch of long hairs, 
and from its posterior end a stripe of long and dorsally extremely long hairs runs upwards on the side and 
across the back of the animal. While the whole ventral surface of the trunk, excepting the transverse area 
between the legs of first pairs, and besides the lateral surface is clothed with innumerable short hairs, the 
dorsal surface of the trunk is very different. Across the middle of this surface one sees a rather large, trans- 
verse, completely naked area (fig. 3 g); between this area and the stripe of extremely long hairs the skin 
is near the median line covered with moderately short hairs, and towards the sides the hairs are shorter; 
behind the naked area a transverse area with long hairs is found. 
First pair of legs consists of a rather broad but short peduncle with two rami; the outer ramus is 
shorter than the breadth of the peduncle, 2-jointed, with first joint considerably thicker and shorter than 
the second which terminates in two setee, the outer longer than the breadth of the peduncle and twice or 
more than twice as long as the other; the inner ramus is about half as long as the outer, one-jointed and 
terminates in a seta about as long as the shorter seta on the outer ramus. Second pair of legs small, two- 
jointed; first joint considerably thicker and much shorter than the second, which terminates in two sete, 
both shorter than the setze on the outer ramus of first legs. — Caudal rami placed considerably before the 
end of the body and rather close together; they are somewhat small, and each with a terminal seta con- 
spicuously longer than the longest seta on first legs. 
Ovisacs. — They are of medium size (fig. 3 c), with a moderately good number of eggs; the ovisac 
exhibited is a little oblong and 0.84 mm. long. 
Remarks. — S. #gine is more similar to S. Giavdi than to any other species hitherto known; 
the female does not show any striking feature, but the male differs especially by the peculiar clothing of 
the trunk, and besides the legs and the caudal rami afford valuable specific characters. 
Occurrence. — Taken by the “Ingolf’’ at a single station. 
Midway between Iceland and the Feeroes: Stat. 3: Lat. 63°35’ N., Long. 10°24’ W., 272 fathoms, 
temp. 0°5; in the marsupium of gina echinata 
Boeck. On one host: 1 large female, 1 male and 
4 ovisacs; on another: 1 female and 2 males. 
Note. — It may be pointed out that Sphar. gine is the first species of the family found on a 
representative of the sub-order Caprellidea. — Far east of the Ferges, at Lat. 62°40’ N., Long. 1°56’ E., 
365 fath., temp. ~ 0°3, the “Michael Sars’”’ (Cand. mag. Ad. Jensen) captured 2 specimens of Caprella punc- 
tata Boeck infested with Spheronella in the marsupium; on one host 1 female and 10 ovisacs very different 
in size, on the other Caprella 1 female and 3 small ovisacs. As no male was discovered I have not dissected 
a female for comparing it with S. #gine, fearing that without possessing the male it would be impossible 
to decide with certainty whether this parasite belongs to S. #gine or represents another new species. 
