68 К. Stephensen. 



X 39. Paradulichia typica Boeck. 



St. 2. 1 spec. 



This otherwise rather rare species has previously been found only 

 once in Greenland, viz. in Olrik Bay, north of Cape York at 15 — 20 

 fathoms (Ortmann, 1901). 



40. Ægina spinosissima Stimpson. 

 St. 33. 1 spec. 



41. Caprella septentrionalis Kr. 



St. 36A. 8 spec. 



Isopoda. 



42. Mesidothea Sabinei Kr. 



St. 13. 1 spec; St. 14. 4 spec; St. 17. 4 spec; St. 18. 15 spec, of 

 which the largest (a <?) was 98 mm. long; St. 21B. 1 spec. These loca- 

 lities are of great interest, the species previously having been known 

 only from four localities in West Greenland (not from East Greenland). 



43. Arcturus Baffin! Sab. 

 St. 33. 1 spec. 



X 44. Janira Vilhelminæ n. sp. (PI. 1 — 2). 



St. 4A. 22 spec. {<S and $). 



At this station Dr. Nordmann took an Asellot, the determination 

 of which has given me some difficulty. As may be seen from the figure, 

 it has a striking resemblance to Janthe speciosa Bovallius (Janthe, a new 

 genus of Isopoda; Bihang Kgl. Vet. Akad. Handb., vol. 6, No. 4, 1881, 

 p. 5, PI. 1 — 3) if we imagine the dorsal spines to be absent and the lateral 

 processes of the head and of the segments to be somewhat more rounded 

 at the apex. Janthe speciosa Bovallius again stands near to Janthe 

 spinosa Harger (Marine Isop. New England ; Report U. S. Commission 

 Fish and Fisheries, pt. 6, for 1878, p. 323, PI. 2, fig, 10) and nearer still 

 to Jolella glabra H. Richardson (Some New Isopoda Aselloidea from 

 N.America; Proc U. S. Nat. Mus., vol.35, 1908, p. 71, fig. 1). The 

 resemblance to the latter species is especially striking; we know that 

 Asellote Isopods can vary highly (see, e. g. læra marina in H. J. Hansen, 

 Revider. Fortegn, over Danmarks marine Arter af Isop., Tanaid.,Cumac, 

 Mysid. and Euphaus.; Vid. Meddel. Naturh. Foren., Kbhvn., 1909 (1910), 

 p. 208, figs. 1 — 6). Of the species mentioned, the present one stands 

 unquestionably nearest to Jolella glabra Richardson, and at first I thought 

 it was a somewhat divergent form of that species. Miss Richardson 

 has only had a single specimen for investigation; she gives but a short 

 description of it without mentioning its size, and only one, not parti- 

 cularly good, figure of it ; but my specimens agree perfectly with her 

 description, when she ends by saying: "This species is very similar to 

 Jolella spinosa (Harger) and differs chiefly from that species in lacking 

 spines on the dorsal surface of the body." 



