270 DE. J. G. DE MAN OlS" THE P0D0PHTHALM0TJ8 



on its lower margin. The upper margin of the palm, as in A. Ed- 

 wardsii, 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. Edwardsii. 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. JUdioardsii. 

 The mobile finger is comparatively shorter than in A. JEdwardsii, 

 and is probably more like 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. Edwardsii, 

 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. Edioardsii. 



The smaller hand is also comparatively less slender than that of 

 A. Edioardsii ; and, like the larger hand, it is also slightly thicker, 

 and perfectly resembles the smaller \i.-dLn.dioi A. parvirostris. Ttie 

 rounded upper margin of the palm, 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, 

 and their tips cross one another. The inner margins of the 

 fingers are slightly excavated. The mobile finger of A. Hip- 

 pothoe presents the same form in the male and in the female, 

 whereas in A. Edioardsii the mobile finger of the smaller chela 

 of the male has quite a difierent foi'm 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. Hippothoe. The 

 iuner edge of the internal concave margin of the immobile finger 



