CRUSTACEA MALACOSTRACA. Ill 6l 



ou a single specimen, a scarcely full-grown female; I think that his figure shows the posterior half of 

 the bod}' distinctly broader than it was in his specimen. 



The following list of localities shows that specimens have been gathered at three stations in 

 the warm deep-sea area and at six stations in the cold area. In vain I have attempted to refer the 

 specimens from the two areas to two species; it was impossible to find any character. I was unable 

 to find any difference in length, breadth or shape of the more important parts — as thoracic processes, 

 fifth segment, abdomen -- between the fine males from Stat. 36 (1435 fath.) in the warm area and the 

 male from Stat. 116 (371 fath.) in the cold area. The male from Stat. 113 is only 4-2 mm. long, con- 

 sequently conspicuously smaller than my three adult specimens, and it differs from these in having 

 the processes of first segment only slightly more than half as long as the breadth of the segment, 

 the fifth segment is only seven times as long as the breadth somewhat before its middle, and its ab- 

 domen is conspicuously longer than broad; the male from Stat. 119 is 4-5 mm., and not only in length 

 but in the features mentioned intermediate between the specimen from Stat. 113 and full-grown males 

 measuring 5 mm. — The only specimen which shows appreciable and probably individual variation 

 is the full-grown male from the deepest station (1870 fath.), as it (fig. 1 c) differs from the other large 

 males in the shape of the thoracic processes, which are of normal length but conspicuously thicker 

 and quite straight 



Occurrence. Taken by the "Ingolf" at nine stations. 



Davis Strait: Stat. 24: Lat. 63°o6' N., Long. 56°oo' W., 1199 fath., temp. 2-4°; 2 spec. ($). 

 Stat. 36: Lat. 6i°5o' N., Long. 56°2i' W., T435 fath., temp. 1-5°; 2 spec. (0*). 



South of Davis Strait : Stat. 38 : Lat. 59°i2' N., Long. 5i°05' W., 1870 fath., temp. 1-3° ; 1 spec, (d*). 



North of the Faeroes: Stat. 139: Lat. 53°36' N., Long. 7°3o' W., 702 fath., temp. -j-o-6°; 2 spec. (?). 



East of Iceland : Stat. 102 : Lat. 66°23' N., Long. io°26' W., 750 fath., temp. -4- 0-9° ; 5 spec. 



North-East of Iceland: Stat. 120: Lat. 67°29' N., Long. u°32' W., 885 fath., temp. -=- ro°; 1 spec. (?). 



Stat. 1 19: Lat. 67°53' N., Long. io°i9' W., 1010 fath., temp. -=- ro°; 1 spec. (o*). 



South of Jan Mayen: Stat. 113: Lat. 69°3i' N., Long. 7°o6' W., 1309 fath., temp. -4- ro°; 5 spec. 



Stat. 116: Lat. 70°05' N., Long. 8°26' W., 371 fath., temp. -4- 0-4°; 1 spec. (d 1 ). 



Distribution. A single specimen taken west of Norway: Lat. 67°56' N., Long. 4 11' E., 778 

 fath., temp, -f- 1-4° (G. O. Sars). 



37. Haplomesus angustus 11. sp. 

 (PI. V, figs. 2 a— 2 e). 



Young Male. Extremely slender, between ten and nine and a half times as long as the 

 breadth of the anterior segments. The granulation on the body finer than in H. quadrispinosus. 



Antennulae (fig. 2 b) much shorter than in the preceding species, when stretched backwards not reach- 

 ing the posterior margin of second segment. Second joint scarcely as long as the distal joints combined; 

 third joint only about as long as the fourth, but in this young specimen the flagellum contains only 

 two joints, as the distal joint has not yet been divided into two joints. -- Antennae lost excepting the 

 four proximal joints of the peduncle; third joint about as in H. quadrispinosus, nearly as long as first 

 thoracic segment with head. 



