58 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
are minutely pubescent posteriorly. Unfortunately the speci- 
men has lost its smaller chelipede. The chelipede which is 
present perfectly resembles the larger chelipede of H. indica, 
so that I again refer to my description of that species. I will 
only add that the chelipede is quite smooth everywhere on all 
the joints, and that the denticulate upper margin of the arm 
is furnished near its distal end with a strong tooth, which is, 
however, a little less acute than in the preceding species. 
The ambulatory legs are also wanting, except those of the 
two anterior pairs of the right side; these agree with those of 
H. indica, but the dactylopodites are a little more elongate, being 
distinctly longer than the propodites. 
Dimensions. 
millim 
luensth of the cephalothorax *.. .. 2. tui. eee 9 
Breadth of the cephalothorax (distance between the 
fourth antero-lateral teeth) .......2 0.0.5.0 = 121 
Distance between the internal orbital angles .... = 4 
Length of the hand (the fingers included) ...... 10 
Height of the hand at the base of the fingers .... 532 
The specimen under description, as in fact the whole collection, 
is preserved in alcohol. This species is, like H. indica, of a 
dark olive-green colour. The diagnosis given by Stimpson very 
well agrees with my description, except that the three posterior 
antero-lateral teeth are described as being acute, whereas in this 
specimen the second is rather obtuse. 
Stimpson discovered this species at Hongkong. 
Genus Pitumnus, Leach. 
40. PILUMNUS VESPERTILIO, Fabr. 
Cancer vespertilio, Fabricius, Suppl. Entom. 1798, p. 338. 
Pilumnus vespertilio, Milne-Edwards, Hist. Nat. Crustacés, t.i. p. 418, 
and Réegne Animal de Cuvier, pl. xiv. fig. 3. 
Pilumnus vespertilio, Alph. Milne-Edwards, Nouv. Arch. du Muséum 
Hist. Nat. t. ix. p. 242; Hilgendorf, Monatsber. k. Akad. Wiss. Berlin, 
Nov. 1878, p. 793 ; Miers, Ann. & Mag. Nat. Hist. 1880, 5th ser. vol. v. 
p. 234; Haswell, Catalogue &c. p. 65. 
Hight specimens were collected at Elphinstone Island, five 
males and three females. 
