﻿82 



CRUSTACEA MALACOSTRACA. II. 



the bottom and depths exceeding 1400 fatlionis, /,. Anidnipii was found in comparatively low water 

 at the cold East Greenland. 



The name is given in honour of G. C. Amdrup. Captain in the Danish Navy and the able 

 leader of two Danish exploring expeditions to East Greenland. 



Occurrence. Taken by the II'' Amdrup Expedition at a single locality. 



East Greenland: Fonsblad Fjord, Lat. 72° 27' N., 90—40 fm., i spec, (female with marsupium). 



Group b. Uropods long, 'ivith botli mini hvo-joitifrd a)id the exopod conspicuously shorter than 

 flic first joint of flic cndopod. Plcopods in the female somewhat small with the marginal sefcr at most 

 as long as flic rami or almost rudimentary. Animais slender or very slender. 



Species 52—53. 



The animals of this grouj:) are on the whole allied to those of group a, but they are more 

 slender with the pleopods considerably or much reduced and the articulation between fourth and fifth 

 joint of the antennae feebly developed. 



52. Leptognathia tuberculata n. sp. 

 I Pi. VIII, fig.s. 3 a -3 f.) 



Female. Hodv much more slender than in any of the preceding species, but the animal in 

 other respects rather similar in general aspect. — Antennulse (fig. 3 a) slightly more than two-thirds 

 as long as the carapace. First joint a little shorter than the three other joints combined, somewhat 

 more than twice as long as deep, considerablv tapering; second joint considerably produced above, 

 distincth more than twice as long as dee]) and with the upper margin conspicuousl\' more than half 

 as long as first joint; third joint short, fourth joint much shorter than the upi)er margin of the second. 

 — Antenna" with the articulation between fourth and fifth joint feebh' developed, less or more indi- 

 stinct, and fifth joint about twice as long as the fourth, which is a little shorter than the sixth. 



Chelipeds somewhat I'obust (fig. 3 a). Carpus only half as long again as deep, with the distal 

 half strongly expanded downwards and the corresponding part of the lower margin much curved and 

 even subangular. Chela somewhat longer than the carpus and twice as long as broad, with the an- 

 terior lower corner of the hand angular; movable finger a little shorter than the anterior margin of 

 the hand and with the subbasal part slightly narrower than the fixed finger, which has four teeth on 

 the incisive margin. 



Thoracic legs somewhat short (fig. 3 a) and moderately slender. Second (fig. 3b) and third 

 pairs -with the spines on fourth and fifth joint very long; .sixth joint nearly half as long again as the 

 fifth, which is a little shorter than seventh with claw. Three posterior ])airs (fig. 3c) with sixth joint 

 as long as seventh with claw; se\enth joint without any distinct row of minute setee. 



Four anterior abdominal segments (fig. 3d) with the median row of ventral tubercles low, while 

 the tubercle on the fifth segment is more than twice as high, broadly conical, acute and even a little 

 aciTminate. Pleopods almost rudimentar}-, biramous, but the rami are shorter and much narrower than 

 the small peduncle (fig. 3e), with a small terminal seta and a few minute marginal setse. — Uropods 



