265 



whitish pellucid, with a row of dark brownish stellated pigmentary spots 

 along the back and a few shadows of same colour on the sides. Length of 

 adult female scarcely exceeding 3 mm. 



Remarks. - - Though exhibiting much the same characteristic form 

 of the 4th pair of coxal plates as in M. sinuata, this new species may at 

 once be distinguished from that form by the much more slender and elongated 

 antennae, the comparatively stronger posterior gnathopoda, the peculiar curved 

 form of the meral process of the 3 posterior pereiopoda, and finally by the 

 very strong denticles of the last pair of uropoda and of the telson , 



Occurrence. I found, last summer, a few specimens of this form in 

 the Trondhjemsfjord at 2 different places, viz., at Bejan and Redbjerget. 

 They occurred in both places together with Cressa dubia in a depth of about 

 40 fathoms. 



21. Metopa leptocarpa, Gr. 0. Sars. 



(PI. 93, fig. 2). 

 Metopa leptocarpa, G. O. Sars, Overs. Norges Crust. I, p. 91, PI 4, fig. 3. 



Body more slender than usual, and not very compressed. Cephalon 

 about twice as long as the 1st segment of metasome, lateral corners angular 

 at the tip. Coxal plates of moderate size; 2nd pair somewhat expanded 

 distally, with the anterior edge boldly curved; 3rd pair about twice as 

 deep as the corresponding segment, 4th pair scarcely larger than the 2 

 preceding pairs combined, and a little broader than they are deep, distal 

 edge evenly curved. Last pair of epimeral plates of metasome rather 

 produced at the lateral corners. Eyes not very large, rounded. Antenna? 

 comparatively short; the superior ones scarcely exceeding in length the third 

 part of the body, 1st joint of the peduncle about the length of the cephalon, 

 and scarcely as long as the 2 succeeding joints combined, flagellum a little 

 shorter than the peduncle, and composed of about 9 articulations. Inferior 

 antennae about the length of the superior, last joint of the peduncle a 

 little shorter than the penultimate one, flagellum half the length of the 

 peduncle. Anterior gnathopoda of a rather unusual aspect, very slender 

 and even longer than the posterior ones, carpus extremely narrow and 

 elongated, with only a few small setse on the inferior edge, propodos much 

 shorter, oblong quadrangular in form, though gradually expanding somewhat, 

 distally, palm nearly transverse, and distinctly defined below by a small 



