CRUSTACEA MALACOSTRACA. II. 



25 



than in the female, about as long as the sixth joint, and the claw is conspicuously longer than 

 seventh joint. 



Abdomen much larger in proportion to the thorax than in the female, as long as the sum of 

 the four posterior thoracic segments; sixth segment (fig. 3 e) produced considerably backwards, much 

 longer than in the female and with the hind margin deeply emargiuate, while the postero-lateral 

 angles are scarcely rounded. — Pleopods about as in the female P. abyss/, with moderately narrow 

 rami and the setae very long. — Uropods (fig. 3 e) in the main as in the female, but a little more 

 slender, and one of the terminal setae of the endopod extremely long. 



Length of two males 1.25 and 1.40 mm. 



Occurrence. The "Ingolf" has taken this species at two localities. 



West Greenland: Inner end of Ameralik Fjord, Godthaab, muddy bottom; 43 specimens, 2 of 



which are adult males. 



North of Iceland: St. 128: Lat. 66° 50' N., Long. 20° 2' W., 194 fru., temp. o.6°; 4 spec. 



P. forcipatus has besides been captured by other collectors at the following five localities within 

 our area. 



West Greenland: Karajok Fjord, ab. Lat. 70° 20' N. ; many spec. Vanhoffen. 



East Iceland: Faskrud Fjord, 20—50 fm.; 1 spec. Mag. sc. R. Horring. 



East Greenland: Cape Dalton, Lat. 69° 24' N., 9 — n fm.; 5 spec. {% and <?). II' 1 Amdrup Exp. 

 Turner Sound, Lat 69° 44' N., 3 fm.; 8 spec. II d Amdrup Exp. 

 Denmark Isl., Lat. 70° 27' N., Long. 26° 12' W., 10 fm., clay; 2 spec. Ryder Exp. 

 — - several spec. Ryder Exp. 



Distribution. This species has been established on specimens taken off Bohuslan in 50 — 60 

 and 120— 130 fm. In the Danish seas it has been taken four times, viz. two times in the south-western 

 Kattegat, 13 and 15 fm., and two times in Skager Rak, in 70 and 125 fm. (H. J. Hansen). According 

 to Sars it has been found along the whole Norwegian coast northwards about to Lat. 70° N. Furthermore 

 it was captured in Klosterelv Fjord, East Finmark, close upon the frontiers of Russia (A. M. Norman), 

 in the Barents Sea at Lat. 76 26' N., Long. 6o°55' N., vertical pelagic haul from 30 to o meter (Stappers) 

 and at Northbrook Island, Franz Joseph Land, 10 fm. (Th. Scott). Finally it is known from some 

 localities in the northern Scotland, in 8 — 10 and 50 — 55 fm. (Th. Scott). 



This species is thus boreal and arctic and lives in very moderate depths, from some few 

 fathoms and down to nearly 200 fathoms. 



15. Pseudotanais abyssi n. sp. 

 (PI. II, figs. 4a-4i.) 



Female. The body of the females with marsupium (fig. 4a) somewhat more than three times 

 as long as broad ; in the immature female it is conspicuously more slender. — Carapace, seen from 

 above, with the lateral margins considerably convex excepting near the front end and two and a half 

 times as broad as this front end; the anterior margin feebly concave behind the antennuke, feebly 

 produced at the middle and at the lateral angles. — Eyes wanting. 



The anteunulse (figs. 4 a and 4 c) as long as the carapace, the second segment and half of the 



The Ingolf- Expedition III. 3. 4 



