CRUSTACEA MALACOSTRACA. II. 



Occurrence. It was taken by the "Ingolf" at three stations in the cold area and in very con- 

 siderable depths. 



North-East of Iceland: St. 120: Lat. 6j° 29' N., Long. n°32' W., 885 fm., temp. -=- i.o°; 10 spec. 



St. 119: Lat. 67°53' N., Long. io°i9' W., 1010 fin., temp. -f- i.o°; 1 spec. 

 South ot Jan Mayen: St. 117: Lat. 69° 13' N., Long. 8° 23' W., 1003 fm., temp. -=- 1.0; 1 spec. 



26. Typhlotanais exitnius n. sp. 



(PL IV, figs. 4a— 4 g.) 



Female (without marsupium). The body of a somewhat contracted, not fullgrown specimen 

 (fig. 4a) robust, somewhat less than four times as long as broad. — ■ Carapace in the first-named 

 specimen as long as the three following segments combined, in the second specimen (fig. 4 b) somewhat 

 longer than the two anterior segments combined; it is a little broader than long, the lateral margins 

 posteriorly convex and then converging nearly evenly forwards to the anterior, somewhat produced 

 angle; the front margin nearly half as long as the breadth of the carapace and the rostral process 

 moderately large, acute. 



AntennulcE long, as long as the carapace, second segment and half or almost the whole third 

 segment combined. First joint (fig. 4b) considerably longer than the two other joints combined, about 

 four and a half times as long as deep, and, seen from the side or from above, tapering considerably 

 from somewhat from the base to the end. Second joint distinctly more than half as long as the third, 

 not three times as long as deep; longest terminal seta almost as long as first and second joints 

 combined. — Antenna; somewhat long; third joint somewhat thickened; fourth joint twice as long as 

 the penultimate; terminal setae very long, though somewhat shorter than those of the antennulae. 



Chelipeds (fig. 4 b) long and very slender, excepting the basal joint which is somewhat thick, 

 with the posterior protuberance thick, short, broadly rounded behind and reaching to near the front 

 lower angle of second thoracic segment. Carpus more than half as long again as the basal joint, 

 four times as long as deep and somewhat curved, with the lower margin conspicuously concave. 

 Chela as long as the carpus and nearly more than six times as long as broad, with the hand very 

 elongate, only somewhat less than twice as long as the movable finger, which is slightly thinner than 

 the fixed finger. 



Thoracic segments short in proportion to their breadth ; the three anterior segments together 

 as long as fifth and sixth segments combined; the second segment is about half as long as the third 

 and the fourth is somewhat longer than the fifth, which is slightly longer than the sixth. The lateral 

 margins of third and fourth segments feebly convex before the middle, of the three posterior segments 

 a little convex or subangular rather near their posterior end. Second segment below with a moderately 

 small, curved, acute process projecting near the front end, directed downwards and much forwards. — 

 Thoracic legs slender. Second pair (fig. 4b) long; fifth joint with the distal anterior seta moderately 

 short, sixth joint somewhat longer than the fifth and considerably longer than seventh witli claw. 

 Third pair not much shorter than second; fourth and fifth joints with the seta on the distal anterior 

 angle somewhat long; sixth joint with the distal anterior seta somewhat long; seventh joint with 



