58 DE. J. Gt. DE MAN ON THE PODOPHTHALMOUS 



are minutely pubescent posteriorly. Unfortunately the speci- 

 men has lost its smaller chelipede. The ctelipede which is 

 present perfectly resembles th.e larger chelipede of H. indica, 

 so tliat 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 tlie denticulate upper margin of th.e 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 

 IT. indica, hut the dactylopodites are a little more elongate, being 

 distinctly longer than the propodites. 



Dimensions. 



millim. 



Length of the cephalothorax 9 



Breadth of the cephalothorax (distance between the 



fourth autero-lateral teeth) . 12i 



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 .... 5|- 



The specimen under description, as in fact the whole collection, 

 is preserved in alcohol. This species is, like S. 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. 



G-enus Piltjmnus, LeacTi. 



40. PiLITMNtrS VESPEETILIO, Fair. 



Cancer vespertilio, Fabricius, Siippl. E/itom. 1798, p. 338. 



Pilumnus vespertilio, Milne-Edwards, Mist. Nat. Crustaces, t. i. p. 418, 

 and Regne Animal de Cuvier, pi. xiv. fig. 3. 



Pilumnus vespertilio, Alph. Milne-Edwards, Nouv. Arch, du MusSum 

 Hist. Nat. t. ix. p. 242 ; Hilgendorf, Monatsber. k. Akad. Wiss. Berlin, 

 Nov. 1878, p. 793 ; Miers, Ann. S/- Mag. Nat. Hist. 1880, 5th ser. vol. v. 

 p. 234 ; Haswell, Catalogue Sfc. p. 65. 



Eight specimens were collected at Elphinstone Island, five 

 males and three females. 



