CRUSTACEA MALACOSTRACA III. 2 I 



(fig. 5 a, ep, ep) from the basal joint of the legs. Furthermore a small, very oblong epimeral process 

 (fig. 5 a, ep) is seen at the bottom of the cleft between the two lappets of fourth segment. 



Most of the upper surface of the animals, especially on the thoracic segments, is finely granu- 

 lated, and besides in most of the smaller and in some of the subadult or adult specimens clothed with 

 fine hairs, generally short, but some long hairs may be interspersed. When hairs are scarce or wanting 

 they have probably been lost. 



Among my rich material not a single female with the marsupium fully developed is found. 

 The largest female (from the "Ingolf" Stat. 35) measures 8 - 6 mm. from the tip of the rostrum to the 

 middle of the hind margin of the abdomen; the largest male (from the same station) is 7-2 mm. 

 Occurrence. Taken by the "Ingolf" at six stations. 



Davis Strait: Stat. 32: Lat. 66°35' N., Long. 56038' W., 318 fath., temp. 3.9 ; 11 spec. 



Stat. 35: Lat. 65°i6' N., Long. 55°05' W., 362 fath., temp. 3-6°; n spec. 



— Stat. 28: Lat. 65°i4' N., Long. 55°42' W., 420 fath., temp. 3-5°; 2 spec. 



Stat. 27: Lat. 64°54' N., Long. 55°io' W., 393 fath., temp. 3-8°; 1 spec. 



Stat. 25 : Lat. 63°3o' N., Long. 54°25' W., 582 fath., temp. 3-3° ; 2 spec. 



West of North Iceland: Stat. 96: Lat. 65°24' N., Long. 29°oo' W., 735 fath., temp. ra°; 1 spec. 



Besides it has been gathered three times in Davis Strait, viz.: Lat. 65°45' N., Long. 54°3o' W., 

 about 200 fath. (Stephensen); Lat. 65°36' N., Long. 56°24' W., 349 fath., temp. 3-2° (by Admiral Wandel), 

 and Lat. 63°24' N., Long. 53°io' W., 473 fath. (Stephensen). 



Distribution. Storeggen bank, off Molde, Norway, 400 fath.; besides off the coast of Nord- 

 land and Finmark, 100 to 150 fath. (G. O. Sars). 



8. Ianira spinosa Harger. 



1879. Jnnira spinosa Harger, Proc. U. S. Nat. Mus., Vol. II, p. 158. 

 ! 1880. — — Harger, Rep. U. S. Comm. Fish and Fisheries, Vol. 6, p. 323; PI. II, fig. 10. 



! 1 881. Ianthe spcciosa Bovallius, Bihang till K. Sv. Vet. Akad. Handl., Vol. 6, No. 4, p. 5; Pis. I— III. 



This species is easily separated from the preceding forms by the conspicuous pair of dorsal 

 submediau processes on each thoracic segment. The surface of the body generally more or less hairy, 

 but the hairs are much less numerous than in some specimens of I. laciniata. — The antero-lateral 

 plates of the head are lanceolate, acute, and from not fully twice to nearly three times as long as broad. 

 Epimeral processes are completely wanting at the lateral lappets of the three anterior thoracic segments; 

 between the two lappets of fourth segment sometimes a minute, triangular epimeral tubercle may be 

 seen. At the base of the hind margin of the lappets of the three posterior segments a small sub- 

 triangular epimeral process is always visible, and these processes are seen on Bovallius' fig. 1 as teeth 

 incorrectly not marked off by a suture, and at least those at fifth and sixth segments are distinctly a 

 little longer than according to that figure. 



Harger established / spinosa on two small females, 8 mm. long, and published a single figure, 

 viz., the animal from above. Bovallius established Ianthe speciosa on a very large male, measuring 

 21-5 mm. from the tip of the rostrum to the end of abdomen (the end of its processes, I suppose); he 



