CRUSTACEA MALACOSTRACA. II. 33 



this species somewhat uncertain, though, 011 the other hand, the antennulae, the chelae, the second 

 pair of legs and the shape of the last abdominal segment show close relationship to the above-de- 

 scribed males of the two other species of this genus, and no other species of the genus is known to 

 which the male might possibly belong. For these reasons I have described and figured this male 

 and referred it, with a query, to P. affinis. 



Occurrence. The "Ingolf" has captured this species at twelve stations. 



Davis Strait: St. 32: Lat. 66°35' N., Long. 56°38' W., 318 fm., temp. 3.9 ; 3 spec. 



St. 35 : Lat 63 30' N., Long. 54 25' W., 582 fm., temp. 3.3 ; 13 spec, 



described above as a variety. 

 — St. 24: Lat. 63° 06' N., Long. 56°oo' W., 1199 fm., temp. 2.4°; 3 spec. 



South-West of Iceland: St. 78: Lat. 6o°37' N., Long. 27°52' W., 799 fm., temp. 4.5 ; 1 spec. 



North-West of the Faeroes: St. 138: Lat. 63 26' N., Long. 7°56'W., 471 fm., temp. -=- o.6°; 4 spec. 

 — - - St. 139: Lat 63 36' N., Long. 7°3o'W., 702 fm., temp, -e- 0.6°; 1 spec. 



East of Iceland: St. 103: Lat. 66° 23' N., Long. 8°52'W., 579 fm., temp. -^ 0.6° ; 3 spec. 



— - — St. 102: Lat. 66° 23' N., Long. io° 26' W., 750 fm., temp. -=- 0.9 ; 1 spec. 



— - — St'ioi: Lat. 66° 23' N., Long. 12° 05' W., 537 fm., temp. -^ 0.7°; 3 spec. 

 North of Iceland: St. 124: Lat. 67° 40' N., Long. 15° 40' W., 495 fm., temp. -=- o.6°; 3 spec. 

 North-East of Iceland: St. 119: Lat. 67° 53' N., Long. io°i9' W., ioiofm., temp. -=- i.o°; 6 spec. 

 South of Jan Mayen: St. 116: Lat. 70° 05' N., Long. 8°26'W., 371 fm., temp. -4- 0.4 ; 1 spec. 

 Besides the species has been secured by the IF Amdrup Exped. at a single locality. 



East Greenland: Forsblad Fjord, at Lat. 72° 27' N., Long. 25° 28' W., 50—90 fm. ; 1 spec. 



Distribution. The type specimens were taken in the Kara Sea, 64—65 fm. (H. J. Hansen). 

 — According to the list of localities the species has been taken four times in the warm area in depths 

 from 318 to near 1200 fm., and the highest temperature is 4.5 , but besides it is widely distributed in 

 the cold area in depths from 371 to 1010 fm. and the lowest temperature was -f- 1.0°; finally it has 

 been captured at cold localities in the northern East Greenland and the Kara Sea in much lesser 

 depths, viz. between 50 and 90 fm. 



19. Pseudotanais longipes n. sp. 

 (PI. Ill, figs. 4a— 41.) 



Female. The body scarcely four times as long as broad. — Carapace strongly tapering in 

 breadth forwards (fig. 4b), with the lateral margins not much convex; the anterior margin, which is 

 even a little less than one-third as long as the breadth of the carapace somewhat before its hind 

 margin, is feebly concave at each autennula. — Eyes wanting. 



Antennulae very elongate, twice as long as the carapace (fig. 4 a) and extremely slender (fig. 4 c!. 

 First joint more than six times as long as deep though its proximal part is somewhat thickened be- 

 low, slightly longer than the two other joints combined; second joint not half as long as the third; 

 the setae on all joints extremely long. — The antennae (fig. 4c) are very slender; third joint shorter 



The Ingolf-Expedition. III. 5. 5 



