LIZ 
Euphausia latifrons, Sars. 
1883. Euphausia latifrons, Sars, Vid. Selsk. Forhandl. Christi- 
ania, No: 7, p. 19. 
1885. Euphausia latifrons, Sars, Challenger Schizopoda, Re- 
ports, Vol. XIII., p. 95, Pl. 16, figs. 17-23. 
1900. Euphausia latifrons, Stebbing, Proc. Zool. Soc. London, 
Pp. 544- 
This small and delicate species appears to be well marked by 
the broad, sub-quadrate, distally-truncate rostrum. The third 
segment of the pleon is not produced dorsally to a tooth. The 
sixth segment is longer than the preceding, and forms a very 
small dentiform projection. The preanal spine is small, simple, 
unguiform. The first joint of the first antennae carries distally 
a short membranous lobe and has the outer margin prolonged 
into a strong tooth. The branchiae are divided into com- 
paratively few lobules. 
According to Sars the carapace is without any lateral den- 
ticle. Of the South African specimens only one or two could be 
found answering to this character. The greater number have 
a well-marked, forward-pointing denticle on each margin, at 
about three-fourths of its length from the front. As this 
denticle seems to be strongest in specimens which from the 
quadrate apex of the telson are seen to be immature, it is pos- 
sible that at full maturity it may disappear. In two other 
respects the specimens differ from the form described by Sars. 
The broad rostrum is somewhat convex on either side at the 
base, instead of passing with an uninterrupted concave sweep 
to the apical tooth of the lateral margin, and there are only 
two pairs of minute dorsal spines on the telson, instead of three, 
as figured by Sars. These small differences do not seem to 
warrant the institution of a distinct species, at any rate while 
the facts of the development remain uncertain. 
Length, scarcely exceeding 8 mm. in the largest specimens. 
Locality.—Cape St. Blaize, N. 10° W., 33 miles. Specimens 
abundant in coarse trawl net attached to trawl. Sars in 1885 
speaks of the species as being seemingly “restricted to the 
Australian Seas and those of the Indian Archipelago.” 
