350 



exceeding in length, the first 2 segments of mesosome combined, rostral pro- 

 jection very small and obtuse, lateral corners narrowly rounded, postantennal 

 ones but little produced. Coxal plates comparatively small; 1st pair scarcely 

 expanded in their outer part, terminal edge evenly rounded ; the 2 succeeding 

 pairs slightly tapering distally; 4th pair somewhat deeper than the correspond- 

 ing segment, posterior projection not much produced, tip obtusely truncated. 

 Last pair of epimeral plates of metasome produced at the lateral corners to a 

 small, somewhat recurved, dentiform projection defined above by a deep sinus, 

 posterior edge strongly curved in its inferior part. Eyes comparatively small, 

 oval triangular in form, pigment dark red. Superior antennae rather slender, 

 equalling about 2 /s of the length of thebody, 1st joint of the peduncle exceeding 

 in length the other 2 combined, flagellum nearly 4 times as long as the 

 peduncle, and divided into numerous short articulations. Inferior antennae much 

 shorter than the superior, last joint of the peduncle scarcely attaining the length 

 of the penultimate one, flagellum about twice the length of the peduncle. 

 Gnathopoda much stronger than in the 2 preceding species, propodos in both 

 pairs rather large, fully as long as the basal joint, and oblong in form, slightly 

 tapering distally, palm very oblique, nearly occupying the whole inferior 

 edge of the propodos, and defined posteriorly by a very slight angle, its edge 

 armed with several strong spines, dactylus long and slender, carpus compa- 

 ratively, short and produced inferiorly to a setous lobe. Pereiopoda rather 

 slender, and edged with tufts of small spines, the 3 posterior pairs nearly 

 equal in length, with the basal joint a regular oval and finely serrated poste- 

 riorly. Last pair of uropoda with the outer ramus scarcely exceeding half 

 the length of the inner. Telson oblong oval in form, nearly twice as long 

 as it is broad, tip evenly rounded. Body whitish, with a slight yellowish 

 tinge, and everywhere mottled with reddish brown pigmentary spots. Length 

 of adult female 12 mm. 



Remarks. This form was first described by Kroyer as Amphifhoe 

 bicuspis, and subsequently referred by Bruzelius to his genus Parampliitliol : . 

 It is easily distinguishable from the 2 preceding species by the small 

 rostral projection, the presence of only 2 dorsal projections, and especially by 

 the rather different structure of the gnathopoda. The Phernsa bicuspis of Sp. 

 Bate canuot properly be identified with the present species. 



Occurrence. - - 1 have only met with a few specimens of this form, which 

 were collected off the Finmark coast. According to Boeck it also occurs off the 

 west coast of Norway, thus at Christiansund, at moderate depths among algae. 



Distribution. - - Greenland (Kroyer), Spitsbergen (Goes), Iceland (Tho- 

 vi -1), Labrador (Packard), Bohuslan (Bruzelius), Kattegat (Meinert), coast of 

 France (Chevreux). 



