Natural History of East FinmarJc. 21 



Genus Platychelipus, G. S. Bradj, 1880. 

 Platychelipus littoralis, G. S. Brady. 



1880, Platychelipus littoralis, G. S. Brndy, Brit. Copep. vol. ii. p, 103, 

 pL Ixxix. figs. 20-23, pi. Ixxx. fig. 15. 



The onlj gatliering in which this species occurred was 

 from Bog Fiord, and very few specimens were observed. 

 Platychelipus was collected by W. S. Bruce, along with 

 Nannopus palustris, G. S. Brady, on the east side of Kolguev 

 Island, while cruising in Mr. Coates's yacht the ' Blencathra.' 



Genus Dactylopus, Glaus, 1863. 



Dactylopus tishoides, Glaus. 



1863. Dactylopus tishoides, Glaus, Die frei lebenden Copopodeu, p. 127, 

 pi. ivi. figs. 24-28. 



This species was of frequent occurrence in gatherings from 

 Bog Fiord, Lakse Fiord, Vadso, between tide-marks, Va- 

 ranger Fiord, East Finmark ; and also from Svolvser, Lofoten 

 Islands. There appeared to be two forms, and the one which 

 was the more common of the two had pellucid markings along 

 the outer margins both of the secondary joint and of the inner 

 produced part of the basal joint of the fifth pair of thoracic 

 feet ; similar to specimens of the same species collected by 

 Mr. Bruce at Franz- Josef Land (Journ. Linn. Soc, Zool. 

 vol. xxvii. p. 104, 1899). 



Dactylopus lonyiroslris, Glaus. 

 1863. Dactylopus longirostris, Claus, op. cit. p. 127, pi. xvii. figs. 4-6. 



A few specimens apparently belonging to this species 

 occurred in gatherings from Bog Fiord and Vadso Sound. 

 One or two specimens were observed in the gathering from 

 Vadso, which, though differing from the typical D. longi- 

 rostris, resemble that species very closely in their general 

 structure, and I propose to describe them under the following 

 varietal name : — 



Dactylopus longirostris, Claus, vnr. Jlnmarchicus. 

 (PI. II. figs. 4-8.) 



The specimen represented by the drawing (fig. 4) measures 

 about "8 millim. long. The rostrum is j)rominent. The 

 antennules are slender and elongated and composed of eight 

 joints ; the first, second, fourth, and last are subequal in length 

 and considerably longer than the others, while the fifth 



