411 



gnatlinpoda with the propodos very large and tumid, snbovate in form, and 

 attaining the length of the 3 preceding joints combined, palm not defined, 

 dactylns long and curved. Posterior gnathopoda almost exactly like the 

 anterior, both as to size and structiire, except that the inferior expansion of 

 the carpus is somewhat more prominent and very densely clothed with bristles, 

 some of which are strongl}' curved. The 2 anterior pairs of pereiopoda rather 

 elongated, with the meral and carpal joints nearly equal-sized. The 3 posterior 

 pairs very slender and rather densely setous, those of last pair attaining 7^ 

 of the length of the body, dactylus in all very slender, setiform. Last pair 

 of nropoda rather large, basal part compai'atively thick and setous on the 

 outer edge, rami oblong lanceolate, and edged interiorly with long ciliated 

 setae, oiiter ramus a little longer than the inner. Telson very narrow, nearly 

 3 times as long as it is broad, and having on each side, somewhat behind the 

 middle, a single marginal spinule, besides 2 juxtaposed dorsal spinules in 

 front of the latter, cleft very deep, nearly extending to the base and somewhat 

 dilated at the bottom, terminal lobes narrow, bidentate at the tip, and bearing 

 each a single apical spinule. Body semipellucid, with a yellowish orange 

 tinge. Length of adult female reaching 14 mm., of male somewhat less. 



EeniarJcs. — This form was first described by Bruzelius from specimens 

 found at Drabak in the Christianiafjord, and was subsequently recorded by 

 Boeck from several other localities of the Norwegian coast. It may easily 

 be distinguished from the other Pardnlisdd(e by its broad, subdepressed body, 

 the slender and elongated superior antennae, and the very powerful gnathopoda. 



Occurrence- — The species is not rarely met with along the whole 

 south and west coasts of Norway, as also in the Trondhjemsfjord, occurring, 

 as a rule, in comparatively great depths, ranging from 60 to 300 fathoms. 

 According to Boeck, it extends northwards to the Lofoten Isles. 



Ligtrihidion. — Shetland Isles (Sp. Bate). 



Gen. 4. Halice, Boeck, 1870. 



Form of body somewhat resembling that in the preceding genus, the 

 2 anterior segments of nrosome, however, prodiiced dorsally. Cephalon com- 

 paratively small, with a distinct rostral projection. Coxal plates extremely 

 small. Eyes wanting. Antennae slender, the superior ones being somewhat 

 shorter than the inferior. Both pairs of antenna- in male much more strongly 

 developed than in female. Mandibles with the masticatory part less expanded 

 than in tlie preceding genera, and having on each mandible a small secondary 



