24 CRUSTACEA MALACOSTRACA. IV. 



short second joint of the endopod agrees so much with Sars' figures, that I do not entertain any doubt as to 

 the determination. Besides, Sars had only an immature specimen, and the differences between this and my 

 animals seem to be of no specific value whatever, but only accidental or perhaps local variation. Caiman 

 (1. c.) mentions difficulties in referring individual specimens to E. hispida or to E. truncatula Bate. 



E. gracilis G. O. Sars, established on a single adult female from the cold deep-sea area at Spitzbergen, 

 is so closely allied to E. hirsuta, that a direct comparison of specimens of both forms is very desirable. The 

 only differences of real value discovered by me on his figures are found in the uropods; according to Sars' 

 figure of E. gracilis the second joint of their endopod is proportionately considerably longer, while first joint 

 has a considerably lower number of spines, and the exopod only a single seta on its upper side. 



Occurrence. Taken by the "Ingolf" at three stations in the warm area. 



Davis Strait: Stat. 32: Lat. 66°35' N., Long. 56°38' W., 318 fath., temp. 3.9 ; 2 specimens. 

 Stat. 28: Lat. 65°i4' N., Long. 55°42'W., 420 fath., temp. 3.5°; 6V2 specimens. 

 Stat. 25: Lat. 63^30' N., Long. 54°25' W., 582 fath., temp. 3.3°; 1 specimen. 



Besides a single specimen has been secured by Prof. L). Bergendal at Jakobshavn, West Greenland 

 (Lat. 69-13' N.). 



Distribution. Recorded from a number of places at the Atlantic coast of North America from 

 Nova Scotia southwards to Marthas Vineyard (about Lat. 41 V-i" N.), in depths from 1 to 4, 5, and 16 to 

 70 fath. (Sars, Smith, Caiman). 



19. Eudorella arctica n. sp. 



(PI. I, figs. 9a — 9d). 



Female. An ovigerous female and an immature specimen are to hand, and agree with one another 

 in nearly all features of any importance. The species is closely allied to E. truncatula, but an important dif- 

 ference in the uropods renders a reference to the latter form impossible. 



The immature specimen has a number of outstanding hairs on the surface of cephalothorax and 

 abdomen, while they have nearly disappeared in the adult. On the carapace the antennal notch is somewhat 

 long but rather shallow ; in the immature specimen (fig. 9 a) one small and one large tooth are found above 

 and two small teeth below the notch, while in the adult that serration is still more rudimentary. The antero- 

 lateral tooth is long, robust and horizontal in the small specimen, but feebly developed in the adult. 



First pair of legs (fig. q b) as in E. truncatula, as the propodus is considerably longer than the carpus 

 and nearly more than twice as long as the terminal joint. In second pair of legs (fig. 9 c) the merus is somewhat 

 thickened and nearly as long as the carpus; the terminal joint is moderately broad. — In the uropods (fig. 9 d) 

 the peduncle is a little longer than the endopod, with several — in the adult about 7 — spines at the inner 

 margin; the exopod reaches to or, in the small specimen, even beyond the end of the endopod, and has about 

 3 long setae on the upper side, 4 seta? on the outer margin and the usual setae on the end and on the inner 

 margin; first joint of the endopod nearly three times as long as second joint, with about 7 spines on the inner 

 margin, while the second joint has 2 spines on the inner margin, a rather long, very thick spine and an ex- 

 tremelv long seta on the end. 



