﻿CRUSTACKA MALACOSTRALA. II. y. 



tliree-fmirtlis of its leugtli; IIr- inner side of llie hand (fis^. 2h) with a subdistal, transverse row of 

 peculiar light but broad sette. 



Second pair of thoracic legs (fig. 2i) thinner than in the female, with the sixth joint .scarceh' 

 half as long again as the fourth and as li>ng as seventh with elaw. Three posterior pairs of leo-s 

 (fig. 2k) with sixth joint somewhat longer than the fiftli and .slightly shorter tlian the seventli, whicli 

 is about two and a half times as long as the claw-. 



Sixth abdominal segment (fig. 2I) posteriorh- produced into a small, rounded tip. — Kndopod 

 of the uropods somewhat longer than the exopod, two-jointed, with the first joint a little longer and 

 considerabh- thicker than the second, before the middle on tiie upper iialf of the otiter side witli some 

 fine hairs placed in a transverse row. 



Length of the specimen 1.3""". 



Remarks. L. Ilmisnii is sharply separated from the three preceding species b\' the more 

 oblong cheUe without any serration on the anterior margin of liand or finger; from /.. longirciiiis 

 Lilljeborg and L. ii/cniiis n. sp. it is easih- distinguished by the mtich longer "claw" (se\-entli joint 

 plus claw) on second and third pairs of legs. As to the male described, which is easilv seen to belong 

 to Leptogiiafliid. I am sure that it belongs to the female, because it has been taken together with a 

 large number of females and immature males and cannot belong to an\- other species known from 

 West Greenland excepting /.. Saisii and L. gracilis, btit no female of any of these species has been 

 taken at Ameralik, and the male described by Sars as belonging to his L. longirrn/is probabh- belongs 

 to L. Sars// and differs widely in some features. 



Then the determination of the [present species. In the paper on tlie marine Malacostraca of 

 West Greenland (1887) I mentioned a specimen which did not agree with /,. /(>>/o/rcij//s as interpreted 

 and figured by .Sars in the Norwegian North-Atlantic Expedition, because tlie chehe had no serration; 

 I named it '^'^ Lrptognafli/n loiig/mii/s Lilljeliorg" and added figures of antenna, chela and uropod. 

 According to these figures the specimen (which belongs to the Riks Museum in Stockholm) is cer- 

 tainly identical with the species described here as L. Haitsni/ Vanh. Later \'a]di(")ffen captured several 

 specimens of a species in Karajok Fjord (not \'er\- far from Kekertak); he found that his females 

 agreed with my remarks and figures and finding no positive facts which made it necessary to refer 

 the form to the real /,. loiig/rnii/s Lilljeborg, he named it A. Iiiuisriu. described autl figured the male 

 but unfortunately not the more important female. As his male differs from m\' above-described spec- 

 imen in a couple of features to be discussed presenth, 1 asked Dr. \'anhoffen to lend me a few spec- 

 imens; 1 received the whole material, six females and an adult male, and I beg the Direction of the 

 ]>erlin Museum and Dr. Vanh(")ffen to accept m\' sincere thanks. The females ca])tured \i\ Dr. \'an- 

 hoffen agree perfecth- with my specimens from other localities, but the male must be mentioned 

 separately. 



Dr. Vanhoffen's specimen is 1.5""", thus distincth a little larger than mine. He figured the 

 endopod of the uroiMxl as three-jointed, but it is in realilx onh two-jointed, as no articulation is found 

 at the lia.se of the transverse row of fine hairs. His figure of the chela does not agree coinpletel\- 

 with m\' s])ecimen, hut an examination of his specimen, which has both chehe closed and the finer 

 slruelure of the iueisi\(.- margins souKwhal indistiuel, doi'S not rex'eal an> real difference worth men- 



■nic ln^alf.Kxpc.lino^. Ml. ;. "O 



