572 



considerably longer than the other pairs, extending, when reflexed, to the 

 end of the body. Last pair of uropoda with the outer raraus rather elongated, 

 exceeding in length the basal part, its terminal joint without any spine, but 

 tipped by 2 slender bristles. Telson very small, otherwise of a shape similar 

 to that in the preceding species. Body whitish, with light brown bands 

 across the segments and coxal plates. Length of adult male scarcely 

 exceeding 4 mm. 



Remarks I think there cannot be any doubt, that the above 

 described form is that recorded by Sp. Bate as Eisdadus lonyicaudatus. Boeck 

 erroneously identified this latter form with P. Beinhardi, whereas it is 

 unquestionably the same as his 2nd species P. Lutkeni. From P. ReinJiardi this 

 form is at once distinguishable by its more slender form of body and less 

 strongly built antennae and legs, but especially by the greatly projecting 

 lateral lobes of the cephalon, well indicated in the figure given by Sp. Bate. 



Occurrence. - I have only seen a few specimens of this form, which 

 were collected off the west coast of Norway (Haugesund), in a depth of 

 about 30 fathoms. 



Distribution. British Isles (Sp. Bate), Kattegat (Meinert), coast of 

 France (Chevreux), 



17 Photis tenuicornis, G-. 0, Sars. 



(PL 2G3, fig. 2). 

 Photis tenuicornis, G. O. Sars, Oversigt af Norges Crustaceer I, p. 110. PI. 6, fig. 4. 



Body short and stout, with broadly rounded back, and rather deep, 

 especially in the female. Cephalon not quite as long as the first 2 segments 

 of mesosome combined, lateral corners rather produced, and narrowly rounded 

 at the tip. Anterior pairs of coxal plates comparatively large, fully twice 

 as dee]) as the corresponding segments, and scarcely setous at the edges; 

 1st pair slightly attenuated distally, and narrowly rounded at the tip; 5th 

 pair with the anterior lobe very large and somewhat expanded in its outer 

 part. Last pair of epimeral plates of metasome slightly produced at the 

 lateral corners. Eyes very small, and placed at the tip of the lateral lobes of 

 the cephalon. Antennae extremely thin and but sparsely setous; the superior ones 

 but little exceeding in length l /3 of the body, 2nd joint of the peduncle a little longer 

 and much narrower than the 1st, 3rd joint shorter than the latter, flagellum very 

 slender and nearly as long as the peduncle, being composed of but 5 elongated 

 articulations. Inferior antennas fully as long as the superior, with the 



