642 



the basal part exceeding half the length of that of the 1st pair. Body 

 pellucid, of a pale yellowish luxe, and without any trace of pigmentary orna- 

 ment. Length of adult female 5 mm., of male about the same. 



BemarJcs. — This species, established by Boeck, is easily recognized 

 from any of the other Norwegian species by the imperfectly developed visual 

 organs, the very slender and elongated antennae and legs, and by the peculiar 

 shape of the posterior gnathopoda in the male. 



Occurrence. — This is a true deep-water species, only occurring in 

 greater depths ranging from 100 to 300 fathoms. I have met with it occasio- 

 nally in several localities both on the south and west coasts of Norway, as 

 also in the Trondhjemsfjord. According to Boeck it extends northwards to 

 the Lofoten islands (Skraaven). Out of Norway, it has not yet been recorded. 



Gen. 4. Paradulichia, Boeck, 1870. 



Form of body about as in Dulichia, and also most of the appendages 

 constructed upon the very same type as in that genus. Second pair of uro- 

 poda, however, very different, being quite rudimentary, and consisting of 

 only a single, conically-tapering joint. 



Eemarks. — The validity of this genus, established by Boeck, would 

 seem to be somewhat qiiestionable, since it only differs from Dulichia in a 

 single feature, vi/., in the imperfect condition of the 2nd pair of uropoda, all 

 other parts being constructed upon the very same type as in that genus. 

 The genus comprises as yet but a single species, to be described below. 



10. Paradulichia typica, Boeck. 



(PI. 232, fig. 2). 

 Paradulichia typica, Boeck, Crust, amph. bor. & arctica, p. 185. 



Feiiiah: — Body not very slender, being rather tumid in its anterior 

 part, and quite smooth throughout. Cephalon of moderate size, and slightly 

 produced in front. Coxal plates very small and of a similar appearance to 

 those in Dulichia. Eyes large and protuberant, rounded, with dark red pig- 

 ment. Antennae slender, and densely setiferous, the superior ones consider- 

 ably longer and more strongly built than the inferior, with the last joint of 

 the peduncle the longest, flagellum about the length of that joint, and com- 



