ANONYX AMPULLA. 
117 
animal ; the secondary appendage is about the length of 
the first articulus of the flagellum, and consists of one 
long and two very minute articuli. The inferior antennae 
are very slender and delicate ; they are more than half the 
length of the animal, and generally lie concealed beneath 
the body ; the peduncle reaches rather further than the 
peduncle of the superior, only two of the joints are 
visible beyond the margin of the head, of which the 
penultimate joint is very broad, and continues so to its 
extremity, whereas the ultimate is considerably narrower, 
but still very much broader than the articuli of the fla- 
gellum ; the first articulus of the flagellum is longer 
than either of the others, but very small in diameter, 
while all the others are still more so — a circumstance 
that renders the entire flagellum exceedingly fine. The 
epistoma is produced to a sharp spear-like point, directed 
straight forward. The mandibles have the second joint of 
their appendage much longer than the terminal. The coxse 
belonging to the first and second pairs of legs have the in- 
ferior margin smooth, except towards the posterior angle, 
which is elevated to a small tooth, immediately before 
which is a depression, from the bottom of which springs 
a short stiff solitary spinule. The first pair of legs have 
the hands long and narrow, the upper and lower margins 
being parallel ; the palm is slightly oblique and straight, 
but obsoletely crenulated, and defined by an obtuse angle, 
a little anterior to which stands a short stout spine, which 
is opposed to the tip of the closed finger ; the finger is 
as long as the palm, and slightly curved. The second 
pair of legs are very long and slender ; the third joint is 
longer than the fourth, — it is the great length of this 
joint that gives the peculiarly slender and feeble appear- 
ance to this leg throughout the genus ; the wrist is 
rather longer than the hand, and has the inferior margin 
