EUPHAUSIA GIBBOIDES. 253 
Furthermore the species was taken twice in 1897 by Dr. Agassiz, viz.:— 
Fiji Islands. Dec. 11, 1897. 6m. South of Suva lightship. 150 fms. 4 specimens. 
Fiji Islands. Dec. 11, 1897. 3m. South of Suvalightship. 100fms. 1 specimen. 
Description.— Body rather stout.— Frontal plate (fig. 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 peduncles 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 above (fig. 2d), is as usually 
with the inner margin somewhat longer anteriorly 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 third 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 oblique and deeply incised just below the upper end, the incision 
limiting the tooth mentioned.— The antennal squama is moderately broad, 
at most reaching the middle of third antennular joint and without any marginal 
tooth at the somewhat broad end; 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 rounded, not angular. 
Third segment with a short dorsal process which at the base is a carinated plate 
and distally slender and almost compressed, acute. Fourth and fifth segments 
without vestige of any dorsal tooth. Sixth segment moderately long, with the 
