Pemphix, Glyphea, and Areosternus. 147 
ted. ‘The anterior margin of the front and the outer angles 
of the orbits are faintly toothed; and on the median line of 
the anterior part of the front there is a series of a few pointed 
teeth. The broad and triangular front entirely covers the 
ophthalmic and antennary segments. 
The carapace does not, like that of the Palinurt, bear spines ; 
but the whole surface is covered with a multitude of tufts of 
small hairs, with a few scattered long hairs. 
The outer antennz are formed as in the Palinurt, their pe- 
duncle uniting with the epistoma. There is no movable scale 
or protective lamella. 
The basal joint of the peduncle is armed with a small spine 
at the external angle; the upper surface is concave posteriorly 
and convex anteriorly; the lower surface is convex and 
a little rough; the inner surface is concave and smooth; the 
anterior margin of the upper surface is adorned with some 
yellow hairs. Long hairs cover the second joint of the 
peduncle, as well as the terminal filament, which is multi- 
articulate and almost as long as the carapace. 
The inner antenne are situated a little below the outer 
ones and formed exactly as in the Palinurt; their basal joint, 
the longest of all, extends as far as the middle of the carpo- 
cerite of the outer antenna; the second and third joints are 
of equal length, and are together as long as the first joint ; 
the two terminal filaments are very short; the inner one, 
which is the longer, is multiarticulate and furnished with 
hairs on the two margins. 
The epistoma is of a transverse rectangular form; its an- 
terlor margin is concave, with a median process in the form 
of a small knob; the concave part is toothed ; the other late- 
ral parts of the margin are crenulated; and the outer surface 
of the epistoma is covered with small tufts of fine hairs. 
The outer jaw-feet extend as faras the middle of the carpo- 
cerite of the outer antenne, and are formed as in the Pali- 
nurt. The third joint of these limbs is of a trapezoidal form, 
longer than broad; the inner margin of the inner surface is 
narrow, armed with nine or ten pointed teeth, of which the 
anterior are the largest; the inner surfaces of all the joints are 
furnished with a multitude of long yellow hairs. 
The sternum is of an elongate and rectangular form. This 
piece is composed of five segments, of which the first, or an- 
terior, is a little narrower than the second ; the second, third, 
and fourth segments are nearly of equal breadth; while the 
fifth segment is very narrow, not so wide as the first. 
The ambulatory legs are all monodactyle ; the first pair is 
much stronger than the others. The other pairs diminish in 
LOF 
