EUPHAUSIA GIHHOIDES. 25:5 



Furthermore the species was taken twice in 1897 by Dr. Agassiz, viz.: — 



Fiji Islands. Dec. 11, 1897. (3 m. South of Suva lightship. l.'iO fins. 4 specimens. 

 Fiji Islands. Dec. 11, 1S97. 3 m. South of Suva lightship. 100 fins. 1 specimen. 



Description. — Body rather stout. — Frontal plate (tig. 2a) is very short, 

 subangular at each side; anteriorly it is produced into a rather long rostrum, 

 the basal part of which is a comparatively somewhat large triangle a little broader 

 than long, while its distal portion is spiniform. The gastric area is, seen from 

 the side (fig. 2b), highly vaulted; the keel from the middle of the rostrum and 

 along that area is sharp. 



The eyes are large. — The antennular jieduncles moderately robust; the 

 first joint is raised considerably above towards the upper terminal margin (fig. 2c), 

 the major part of which is nearly transverse (fig. 2d), but the inner part is pro- 

 duced into a moderately long lobe projecting forwards and somewhat upwards, 

 tapering in breadth to beyond the middle where it abruptly bends much out- 

 wards, this terminal part forming an oblong, acute triangle directed more out- 

 wards than forwards. Second joint, seen from abo\'e (fig. 2d), is as usually 

 with the inner margin .somewhat longer antcriorlj' than the outer, but the 

 terminal upper margin is not oblique, but transverse, even a little and some- 

 times considerably concave, extending to about the outer margin of third joint, 

 where it suddenly bends in the proximal direction parallel with the last-named 

 margin; in this way a kind of short, broad lobe is circumscribed, which covers 

 the proximal part of the upper surface of the third joint with the exception of 

 its outermost portion; and the outer part of this lobe is produced slightly or 

 conspicuously forwards, when the transverse terminal margin is considerably 

 concave. The thirtl joint, beginning only a little from the lobe of second joint, 

 has the dorsal keel high; it rises in height to somewhat beyond the middle 

 and is there produced into a slender, porrected tooth; the front margin of the 

 keel is very oblitjue and deeply incised just below the upper cntl, the incision 

 limiting the tooth mentioned. — The antennal squama is moderately broatl, 

 at most reaching the middle of third antennular joint and without any marginal 

 tooth at the somewhat broad eiul ; the spiniform process from the outer side of 

 the peduncle is long, about half as long as the squama. 



First and second abdominal segments at the middle of the dorsal posterior 

 margin are produced a little, but the protuberance is feebly roimded, not angular. 

 Third .segment with a short dorsal process which at the base is a carintited plate 

 and distally slender and almost compressed, acute. T'oiu'th ;uid fifth segments 

 without \'estige of any ilorsal tooth. Sixth segment moderiitcly long, with the 



