36 CRUSTACEA MALACOSTRACA. IV. 



in the female, which may be recognized by this feature. The male of P. macronyx differs besides from the same 

 sex of the 3 other European species by the convex upper margin of pseudorostrum, no dorsal spines on the 

 carapace and the very long peduncles of the uropods. 



Occurrence. Taken by the "Ingolf" at a single station. 



West of Iceland: Stat. 10: Lat. 64^4' N., Long. 285o'W., 788 fath., temp. 3.5; i mutilated male. 



Besides it has been gathered by the "Thor" in 1904 at the following locality. 



South-West of the Faeroes: Lat. 6ii5' N., Long. 935' W., 463 515 fath.; i male (type). 



Campylaspis G. o. Sars. 



Of this large genus about 24 species have been described in the literature, and representatives are 

 known from nearly every sea. In the "Ingolf" areaiospecies have been captured, but 5 among them are new, 

 which indirectly indicates that even the European fauna of this genus is still somewhat imperfectly known 1 . 



Among the cephalothoric appendages especially second and third pairs of maxillipeds and first and 

 second pairs of legs are generally recognized as affording specific characters. According to my experience 

 third maxillipeds differ more from species to species than any of the three other pairs, and ought therefore 

 always to be carefully figured; especially merus, carpus and propodus show excellent characters. It may be 

 mentioned here that the merus shows a gradual development from a normal shape, f . inst. in C. intermedia 

 (PI. Ill, figs. 6 e 6 f) to that found in C. vcrmcosa (fig. 8 a), from this again to the allied deep-sea form C. 

 globosa (figs. 9 c 9 d) from the Davis Strait, where the shape of the merus is rather curious, while in the close- 

 ly allied antarctic species C. frigida H. J. H. (in Res. Voy. Belgica, 1908) the merus has been developed in 

 the most extraordinary way in the same direction, so that its shape in C. globosa is intermediate between those 

 in C. verrucosa and in C. frigida ; all these 3 (or 4) species are allied and somewhat similar in aspect, and we 

 have here an interesting connection between a boreal form, a deep-sea form from a sea with its coasts sub- 

 arctic or arctic and a real antarctic species but no bipolarity of a species. 



Finally it may be mentioned that the colour of the species in some forms does not agree well with 

 Sars' statements; variation or difference is mentioned later on at C. rubicunda, C. undata and C. horrida. 



31. Campylaspis rubicunda Liljeb. 

 (PI. Ill, fig. i a.) 



1855. Cuma rubicunda Lilljeborg, Ofv. K. Sv. Vet.-Akad. Forh. Bd. 12, p. 121. 



1873. Campylaspis G. O. Sars, Kgl. Sv. Vet.-Akad. Handl. Ny Foljd, Bd. n, no. 6, p. 10, Tav. 



IV, Fig. 1416. 



1 Campylaspis sulcata G. O. S. and C.costata G. O. S. have not been found in the "Ingolf" area, but as both have 

 been secured by the "Thor" north-east of Shetland at Lat. 6ii4' N., Long. Ii9' E., 85 fath., and the last-named form besides 

 north-west of the Hebrides at Lat. 582o' N., I/ong. 9oo' W., 186 fath., it may be possible that they can be found west or south- 

 west of the Faeroes. 



