130 



* 



of eoxal plates less narrowed in front, tip obtusely pointed ; the 2 succeeding 

 pairs with the dentiform projection obsolete. Last pair of epimeral plates 

 of metasome obtusely rounded, without any tooth-like projection at the la- 

 teral corners. First segment of urosome deeply impressed at the base dor- 

 sally, especialh r in the male, and having, as in the preceding species, posteriorly 

 a pair of small spines and 2 anteriorly curved bristles. Eyes in female rather 

 small, rounded oval, in male considerably larger, pigment bright red. Supe- 

 rior antennae with the 1st joint of the peduncle scarcely twice as long as the 

 other 2 combined; flagellum in female composed of 0, in male of 9 articula- 

 tions; accessory appendage with the basal joint rather narrow and spinous 

 on the outer edge only, terminal joint nearly half as long as the basal. Fla- 

 gellum of the inferior antennae in female much shorter than the 2 last pe- 

 duncular joints combined and 7-articulate, in male about equalling the length 

 of the body. Anterior gnathopoda with the propodos oblong oval, somewhat 

 shorter than the carpus. Pereiopoda nearly as in the preceding species, though 

 less richly setous Last pair of uropoda with the basal joint of the outer 

 ramus scarcely dilated distally, terminal joint nearly half as long as the 

 former, and without any lateral setae in the female. Telson with a smaller 

 number of apical spines, lateral spines only 2 on each side. Body very 

 pellucid, and almost colourless. Length of adult female scarcely exceeding 5 

 mm; that of male about the same. 



Remarks. - The redescription of the British form of Bathyporeia by 

 the Rev. Mr. Stebbing has enabled me to identify this species with B. pelagica 

 Sp. Bate. Though very nearly allied to the preceding species, it may on closer 

 examination be readily distinguished in both sexes by the obtusely rounded 

 form of the last pair of epimeral plates of the metasome, not to speak of 

 its greatly inferior size. From B. pilosa it is, moreover, easily known by the 

 bright red ocular pigment, and by the much more slender form of the 2 

 posterior pairs of pereiopoda. The form named by Meinert as B. tentdjtes 

 seems to be this species. 



Occurrence. - The present species occurred in great numbers together 

 with the preceding one, in the Ognebugt off Jaederen, and was immediately 

 recognized as a distinct species, though 1 at first erroneously regarded it as 

 B. Robertsonii Sp. Bate *). A single specimen of the same species was col- 

 lected during the Norwegian North Atlantic Expedition at Host, the out- 

 most of the Lofoten Isles, and quite recently I have had an opportunity of 

 examining numerous specimens of this form, collected by Mr. Schneider in the 

 neighbourhood of Tromso, partly within the littoral zone, as also a single 



*) See: Oversigt af Norges Crastaceer I, p. 84. 



