638 



structure. Body whitish, pellucid, with narrow transverse bands of a brownish 

 pigment. Length of adult female 5 mm., of male 6 mm. 



Remarks. This species, first described by Sp. Bate as Dyopedos 

 porrectw, is easily distinguishable in the male sex by the peculiar structure 

 of the posterior gnathopoda. The female is very like that of the next species, 

 though, on a closer examination, the posterior gnathopoda are found to be 

 somewhat different in shape. 



Occurrence. - - The species is rather frequently met with along the 

 whole south and west coast of Norway, as also in the Trondhjemsfjord, in 

 depths ranging from 10 to 50 fathoms. It extends northwards at least to 

 the Lofoten islands. 



Distribution. British Isles (Sp. Bate), Kattegat (Meinert), Greenland 



(Hansen). 



C. Dulichia monacantha, Metzger. 



(PI. 230, fig. i). 

 Dulichia monacantha, Metzger, Nordseefahrt der Pommerania, Crustacea, p. 226, PI. VI, fig. G. 



Form of body nearly as is D. porrecta, though in male perhaps some- 

 what more robust. Cephalon but very slightly produced in front. First 

 pair of coxal plates in female small, subquadrangular, in male very different, 

 being produced to long horn-like processes pointing forwards; 2nd pair much 

 larger in male than in female, and of a broad quadrangular form, with the 

 anterior corner blunted. Eyes well developed, though perhaps a little smal- 

 ler than in D. porrecta. Antennae somewhat less elongated, otherwise of much 

 the same structure as in that species. Anterior gnathopoda likewise rather 

 similar. Posterior gnathopoda in female with the propodos considerably 

 shorter and of a more regularly oval form ; those in male not nearly so 

 slender and elongated as in D. porrecta, carpus rather massive, propodos but 

 little longer than that part, with the palm rather short, being produced in 

 front to an acuminate projection and denned posteriorly by a spiniform, 

 anteriorly pointing process, dactylus of moderate length, and having at the 

 base inside a nodiform prominence. Pereiopoda almost exactly as in D. por- 

 recta. First pair of uropoda with the basal part armed outside with 4 distant 

 spines only. Body of a light yellowish hue, and more or less variegated with 

 a dark brown pigment. Length of adult male 7 mm. 



Remarks. This species was first described by Dr. Metzger from 

 male specimens found during the Expedition of the Pommerania. It is nearly 



