270 DR. J. G6. DE MAN ON THE PODOPHTHALMOUS 
on its lower margin. The upper margin of the palm, asin A. Ed- 
wards, terminates in an obtuse tooth immediately behind the 
notch, whereas such a tooth is not found behind the notch of 
the lower margin. The triangular depression on the inner, 
the quadrangular depression on the outer surface, and the 
impressed line on the proximal portion of the palm closely 
resemble those of A. Hdwardsit. As I have already observed, the 
distal half of the hand, which lies beyond the notches of the 
upper and lower margins, is narrower in this species than in 
Dana’s A. parvirostris, and resembles that of A. EHdwardsii. 
The mobile finger is comparatively shorter than in A. Hdwardsii, 
and is probably more lke that of A. parvirostris, its upper 
carinate margin being still more rounded and circular. The 
inner surface of the hand is hairy, especially towards the fingers, 
which are also slightly hairy on their outer surfaces ; the mobile 
finger is a little longer than the other, and, as in A. Hdwardsii, 
is armed near the base on its inner margin with a strong rounded 
tooth fitting into a deep pit on the lower finger. I may add 
that the larger hand is comparatively thicker than that of 
A, Edwardsiv. 
The smaller hand is also comparatively less slender than that of 
A. Edwardsii; and, like the larger hand, it is also slightly thicker, 
and perfectly resembles the smaller hand of A. parvirostris. The 
rounded upper margin of the paim, which is marked at its 
proximal portion with a similar impressed line to that which also 
occurs on the larger hand, presents a slight trace of a notch 
immediately before the articulation of the mobile finger; but 
the lower margin is entire. The fingers are as long as, or slightly 
longer than, the palm, and perfectly meet together when closed, — 
leaving no interspace between them; they have the same length, 
aud their tips cross one another. The inner margins of the 
fingers are slightly excavated. The mobile finger of A. Hip- 
pothoé presents the same form in the male and in the female, 
whereas in A. Hdwardsti the mobile finger of the smaller chela 
of the male has quite a different form from that of the female. 
In this species the mobile finger is slightly longitudinally cari- 
nate above, along its whole length, and both edges of its inner 
concave margin are continuous; the oblique rows of hairs 
with which the mobile finger of the smaller hand of the male of 
A, Edwardsii is covered above are wanting in A. Hippothoé. The 
inner edge of the internal concave margin of the immobile finger 
