206 THE SCHIZOPODA. 
(fig. 3a) between five and six times as long as broad, with the outer margin a 
little concave and the inner convex, somewhat tapering from near the base 
to the broad, almost transverse end; the terminal joint somewhat longer than 
broad. 
The abdominal segments furnished above and on the sides with a very large 
number of quite minute, mostly very slender denticles—— The exopod of the 
uropods nearly eleven times as long as broad.— Telson (figs. 3f and 3g) slightly 
more than half as long as the exopod of the uropods, almost twice as long as 
broad, with the outer margin somewhat concave; the terminal incision is deep, 
one third as deep as the length of the telson, oblong-triangular, somewhat 
rounded at the bottom and there with a couple of setae almost as long as the 
incision, while each of its lateral margins is furnished with 13-14 very small 
spines; slightly more than the distal half of each lateral margin of the telson 
is spiniferous, the proximal spines widely separated from each other, the more 
distal spines moderately close; the terminal lobes taper somewhat from the 
base of the incision to near the end, where they are feebly widened inwards; 
this end is broad and rounded, with four spines distinctly a little longer than 
the more distal lateral spines. 
Remarks.— This species is easily distinguished by the shape and armature 
of the telson. The presence of a very large number of tiny denticles on the 
abdominal segments is interesting. 
Il. Tue Orprer EUPHAUSIACEA. 
The collection contains representatives of eight genera. Only three genera 
hitherto known are wanting, viz. Meganyctiphanes Holt and Tatt., Thysanoéssa 
Kroyer (with Rhoda Sim or Boreophausia G. O. 8.'), and Tessarabrachion 
H. J. H., but these are exclusively confined to the temperate and cold seas. 
BENTHEUPHAUSIA G. O. Sars (1885). 
Only a single species is known. 
1. Bentheuphausia amblyops (G. O. Sars). 
1883. Thysanopoda (?) amblyops G. O. Sars, Forh. Vid. Selsk. Christiania for 1888, no. 7, p. 23. 
1885. Bentheuphausia amblyops G. O. Sars, Challenger Rept., 18, p. 109, pl. 19; text-fig. 4. 
1 This topic has been dealt with in my paper on the genera and species of the order Euphausiacea | 
(Bull. Mus. Océan. Monaco, no. 210, 1911). 
