114 
GAMMA RID,®. 
about the length of the peduncle ; the secondary ap- 
pendage is short. The inferior antennae are very slight, 
and nearly half as long again as the superior. The 
epistoraa is produced to a point. The first pair of 
legs are long and slender ; the wrist and the hand are 
nearly of the same length, the wrist being slightly the 
longer of the two ; they have the inferior margin pa- 
rallel with the superior ; the wrist is rather broader 
than the hand, and has the inferior margin furnished 
with a slight brush throughout its entire length ; the 
hand has the inferior margin slightly waved; the palm 
is oblique, and defined by a slightly obtuse angle, near 
which stands one or two strong spines ; the palm is 
also armed with three or four short spinules. The 
finger is rather longer than the palm, but slightly 
curved, increasing in diameter near the centre, where 
it gradually tapers to a point, and is furnished with 
three small stiff spinules, which must add considerably 
to the prehensile capability of the organ. The second 
pair of legs are also very long, slender, and membran- 
aceous ; the third joint is as long as the fourth; the 
wrist is half as long again as the hand, and furnished 
upon the under-side, which is not at all prominent, with 
a delicate fur of hair nearly throughout its entire length ; 
the hand is long, pear-shaped, the broadest axis being 
about one-third of its length from the apex ; the in- 
ferior angle being produced ; the finger, which is very 
minute, articulates posteriorly to the inferior angle, and 
therefore the hand approaches somewhat to the form of 
a double-fingered claw ; the distal extremity of the 
hand is covered with a fur of fine hairs. The walking- 
legs are subequally long and slender, the three posterior 
having the second joint developed to a broad scale, the 
two last being produced a little downwards ; except the 
