41 



attain the (loul)le depth of the body and liave tlie i)osterior corner.s drawn dut 

 to an acute angle; 5th pair considerably In-oader than it is deep. First pair 

 (it e])im(n'al plates of the metasonie prodnced anteriorly to a short tootli like 

 projection; last pair having the posterior angle drawn out to a short uptur- 

 ned point, above wdiich there is a small sinus detining the latter from a convex 

 expansion of the posterior edge. Eyes reniform, much larger in male than in 

 female, pigment deep red. Superior antennae of female about '/s tlie lengtli 

 of tlie 1jod\', in male considerably longer, 1st joint of the peduncle -very thick 

 and masive jutting out at the end interiorly as a sliort spiniform projection, 

 the 2 other joints very short; tlagellum furnished in both sexes on the posterior 

 edge W'ith a somew'hat alternating series of rather large calceolee, accessoiy 

 appendage very slender and composed of about 10 articulations. Inferior 

 antennff in female a little, in nmle considerably, longer than the superioi-, 

 tlagellum in Ijoth sexes furnished anteriorly witli a row of similar calceolse as 

 on the latter. Anterior gnatliopoda with the propodos about as long as the 

 carpus but mncli narrower, dactylus evenly curved and armed at the base 

 wdth a dense bunch of delicate spinules. Posterior gnathopoda nearly twice 

 tlie length of the anterior, ])rop(id;\l joint oval, half as long as the carpal 

 joint and not at all produced at the tip. Last pair of pereiopoda almost twice 

 the lengtli of the 3rd. . Last pair of uropoda with the rami much longer than 

 the basal part, outer one the longer and having a distinct terminal joint. 

 Telson twice as long as broad, cleft beyond the middle, each lolje bearing a 

 small apical denticle. Colour light greenisli, oral region and urosome partly 

 tinged with crimson. Lengtli 17 mm. 



Rpiiinrl's. — Tlie present very handsome species is chiefly distinguished 

 by the peculiar supply on the antennal flagella in both sexes of numerous 

 ratlier large colceola>, a character which usually is only ])articular to the 

 male sex. Moreover the spiniform projection of the first joint of the 

 superior antennge, and the peculiar form of the 1st and last pair of epimeral 

 plates of the metasome afford good distinctive characters. 



Occurrence. — It has been found in several places on the west coast 

 of Norway: Manger, Stavangerfjord, Skudesnaes, Bukken, Bejan, in moderate 

 de|)ths, from 20 to 50 fathoms. Its most northern range seems to be the 

 Trondhjemsfjord. 



Dl><trihation. — Adriatic (Heller), gulf of Marseilles (^Marion). 



