562 



oval triangular in form, palm about the length of the hind margin, dactylns 

 rather slender and perfectly smooth. Posterior gnathopoda in female not 

 very large, and but little stronger than the anterior, propodos oblong oval 

 in form, with the palm much shorter than the hind margin, and denned below 

 by a distinct angle armed with a small spine, its edge minutely crenulated 

 and slightly produced above the middle; those in male much stronger than 

 in female, with the propodos very large and oval in form, palm nearly 

 transverse and bisinuate, being angularly produced in the middle, and denned 

 below by a rectangular projection, dactylus much longer than the palm, and 

 impinging, when closed, against the inner face of the propodos. The 2 

 anterior pairs of pereiopoda comparatively stout, with the basal joint rather 

 large; the 3 posterior pairs moderately slender, and having the basal joint 

 somewhat expanded, that of the antepenultimate pair being the broadest. 

 Last pair of uropoda with the rami shorter than the basal part, and mucro- 

 niform. Telson very small, rounded. Body whitish, with more or less 

 distinct light brown bands across the segments and coxal plates. Length 

 of adult female scarcely exceeding 3 mm. 



Remarks. This is a very distinct species, easily recognizable, not 

 only by its very small size, but also by the greatly projecting lateral 

 corners, the form of the eyes, the comparatively large coxal plates, the 5th 

 of which exhibits a somewhat unusual shape by the great development of 

 the anterior lobe, and finally, by the shape of the last pair of epimeral plates of 

 the metasome. Moreover the several appendages exhibit, as shown by the 

 above diagnosis, several well-marked distinguishing features. It would seem 

 to be very nearly related to the form recently described by Messrs Stebbing 

 & Robertson as Podoceropsis palmata, and may perhaps turn out to be the 

 same species. There are however some differences, which at present prevent 

 me from identifying both. Thus, to judge from the figure given, the coxal 

 plates are not nearly so large as in the Norwegian form, being scarcely 

 deeper than the corresponding segments, and also the shape of the gnathopoda 

 (in male) appears to be somewhat different. 



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

 were collected last summer in the Christianiafjord, at Sandosund and Laur- 

 kullen, in a depth of about 20 fathoms, muddy bottom. 



