﻿crustace;a malacostraca. ii 



69 



conspicuously longer than the second joint; the exopod more than half as long as the proximal joint 

 of the endopod. 



Length of the largest specimen, a female with marsupinm from the Sabine Island, is 5""" long, 

 but the majority of the females are only 3.5 — 4""". 



Suliadult Male. Antennnke considerably thicker than in Ihc female, five-jointed, the proximal 

 third of the fourth joint being set off by an articulation and somewhat thickened; first joint somewhat 

 shorter than the other joints combined, thick to the end; second joint scarcely as thick as the first 

 and third joint rather thick, .\bdomen distinctlv' a little longer and thicker in pro])ortion to thorax 

 than in the female. — Length 2.6—2.7""". 



Adult ]\Iale. Not seen by me, but I suppose that the adult male described and figured b\- 

 Sars as belonging to his L.loiii;ii(iiils is the male of L.Surs/i. It has the two proximal joints of the 

 antennulce extremeh' broad and the chela: unconnnonlv slender, while the thoracic legs have the sixth 

 joint longer than sexenth joint with claw. 



Remarks. L. Sars/i is easily recognized from the other specie^. by the rounded protruding 

 keel or generally triangular process on the lower lateral surface of last abdominal segment and by the 

 row of saw-teeth on the outer side of the chela a little from its posterior margin. In the shape of 

 the hand and the crenulation of the mo\able finger it agrees with L. gracilis Kroyer and 1.. gniciloidcs 

 Lilljeborg. The form with the obtuse process or rounded lateral keel I name var. obtiisdtn; it is cer- 

 tainly only a variety, as m\- material from the vSabine Island contains both specimens with the ])ro- 

 cesses obtuse or much reduced. That L. Sarxii is identical with L. loiigirniiis G. O. Sars as described 

 and figured in his standard work is easih' seen b^• the pair of processes on last abdominal segment. 

 That the real L. loiigirciiiis Lilljeborg is another species is easil}- decided b\- two characters found in 

 Lilljeborg's diagnosis of the female: "Manns ... digito mobili kevi" and "Unguis pedum thor. 2:di paris 

 brevis, et articulo unguifero nuilto brevior." This last-named species is described below. 



Occurrence. The "Ingolf" has found this species at three stations. 



North of Iceland: St. 128: La t. 66° 50' N., Long. 20° 02' W., 194 fm., temp. 0.6°; i spec. 



— - — St. 126: Lat. 67° 19' N., Long. 15° 52' W., 293 fm., temp, -h 0.5''; 7 spec. 



— - — St. 124: Lat. 67^40' N., Long. i5°4o'W., 495 fm., temp. -=- 0.6^; 4 spec. 

 Besides L. Sars// has been taken by various Zoologists and the II'' Amdrup-Expedition at a 



good numlier of localities. 



West-Greenland, probabh' Kgedesminde; i spec. [\-cXr. iihf/is<ifti). Prof. D. Bergendal. 



Fferoes: Klaksvig, 10 — 15 fm.; about 70 spec. Dr. T. Mortensen. 



East Iceland: Rreidals Vig, 6 fm., mud and black sand; 28 spec. Dr. A. C. Johansen. 



— — Seydis Fjord, 6 fm., lilack sand; 6 spec. Dr. .\. C. Johansen. 



— - — Bakke Fjord, 8—10 fm., black sand; 9 spec. Dr. A. C. Johansen. 



East Greenland : Angmagsalik, Lat. 65' 51' N.; 4 spec. (var. <>/>//txt!/ii)- Mag. Kruuse. 



— — Cape Dalton, Lat. 69° 24.6' N., 9—11 fm.; 4 spec. lb' Amdrup F:xped. 



— — Turner Sound, Lat. 69" 44' N., 3 fm.; i spec. [vav. ti/^/usi////). IF' Amdrup F'xped. 



— — North uf Stewart Land (about at Lat. 70' /^ N.), 158 fm.; 2 spec. lb' .\mdrup Exped. 



