﻿CRUSTACKA MAI.ACOSTRACA. 11. yj 



tniding- lateral process or keel. — Urojjods (fi<;-. id) in the main as in /.. .Wirsi/ : peduncle about twice 

 as long as deep, a little more than half as lon.^- as first joint of the endopod, and this joint is .some- 

 what longer than the second; exopod scarcely more than half as long as the proximal joint of the 

 endopod. 



Length of a female without marsupium from Greenland 3.2'""'; an ovigerous female from Xor- 

 way is 2.2""" long. 



Remarks. This species is, in my oinnion, well separated from /.. Sdrsii h\ llie absence of a 

 row of teeth cm the outer side of the chela and b\' having the last abdominal segment simple, without 

 any acute or rounded lateral process. 



In the revised list of the Danish species of most orders of Alalacostraca (19091 I referred 

 L. graciloides Lilljeborg to L. gimi'l/s Kr. Having re-examined the Danish specimens I ])refer now to 

 refer them to /.. i;r(ial<)/(/rs which is re-established as a species closeh' allied to /,. .Wnsi/ and /.. gra- 

 cilis. L. graciloidcs agrees with L. Sarsii in having a row of tubercles on the outer side of the chela, 

 but the anterior margin of the mo\able finger has only about five sharp saw-teeth, and the last ab- 

 dominal segment has, as in L. gracilis, no trace of a lateral process; it differs from L. gracilis in pos- 

 sessing the row of tubercles on the outer side of the chela, and the carpus of the chelipeds has the 

 distal half more expanded downwards, so that the lower margin t>f the carpus is at the middle con- 

 siderabl}- more incised as in J^. gracilis and even more than in the figure of L. Sarsii (PI. \'I, fig. 7 a); 

 finalh' the uropods have the exopod considerably more than half as long as the first joint of the 

 endopod. Length of the Danish specimens, among which a couple of ovigerous females, 2.2 — 2.5""". 



As to Kroyer's specimen and description I refer to m\' remarks (p. 230 — 31) in the paper on the 

 Danish fauna; it is clear that my application of the Kro\'erian name is not quite certain, but I have 

 used it, as I did not like to cancel it. 



Occurrence. This species has been captured b\' the "Ingolf" at a single locality. 



West-Greenland: Ameragdla (inner end of Ameralik Fjord, near Godthaab), muddy Iwttom, 



II spec, (some of them young). 



According to Sars his specimens of /.. islamlicits or (in 1885) L. loii^imiiis, which seem to be- 

 long to L. gracilis, were taken at Iceland, harbour of Reykjavik. 



Distribution. As already mentioned, I found a few specimens of I. .gracilis between co-types 

 of L. laiigirriiiis given by G. O. Sars and taken at Norwa\'. The Copenhagen Museum possesses 3 

 small specimens from the Kara Sea, 50 fathoms. Kroner's specimen was from vSpitzbergen. S])ecimens 

 taken in the deep water off Aberdeen and in the Moray Firth were determined b\' Th. Scott as /,. (?) 

 loiigirciiiis Lilljeb., but according to his description aud figures the specimens probabh' belong to L. gracilis. 



Group a, subdivision i-i (vid. p. 66). 



44. Leptognathia Hansen! \'anhoffen 

 (PI. VII, fig.s. 2a— 2 1). 



1907. Lcptogiialliia //(///AV7//\'anhoffeii, Zool. Jalub., .\btii. fiir System. Hd. XX\', p. 513, Taf. 20, Fig. 13—15. 

 Female. General asjiect about as in I., gracilis. — .Xnleiinula' (fig. 2a) on the whole a little 



