52 DE. J. G. DE MAN ON THE PODOPHTUALMOTIS 



Dimensions of the specimen under notice : — 



millim. 

 Breadth of the cephalothorax (distance between 

 the fourth or penultimate antero -lateral teeth) 11| 



Length of the cephalothorax 8| 



Breadth of the front 4 



Actumnus nudus was discovered in 1867 at Pondicherry, but 

 has not been recorded since, so far as I am aware. 



Milne-Edwards's specimen had evidently lost the hairs with 

 which the legs had. been sparsely clothed. 



Genus Heteeopanope, Stimpson. 



The name Seteropanope, established by Stimpson in 1858, 

 being of older date than the name Filumnopeus of A. Milne- 

 Edwards, I propose to include under the former a small number 

 of Crustaceans from the Indo-Pacific region, which were de- 

 scribed by StimpsoQ as representatives of Seteropanope, together 

 with a few species described by A. Milne-Edwards, Miers, and 

 Haswell under the name of Filumnopeus. I may, however, 

 remark that Stimpson also referred to his genus Seteropanope 

 those species which are regarded as representatives of the 

 genus Epixanthus. As regards the genus Filumnopeus, two 

 species have been described by the French carcinologist under 

 that name, one of which, Filumnopeus maculatus, is a true 

 Eurycarcinus ; whereas the second, named Filumnopeus cras- 

 simanus, is probably identical with Ozius serratifrons, Kinahan, 

 and also perhaps with Stimpson' s Heteropanope australiensis 

 (Miers, Zoology of the Voyage of H.M.S. 'Alert,' Crustacea, 

 p. 228). I am the more inclined to retain the genus Hetero- 

 panope, because, when the genus Filumnus is submitted to a 

 thorough revision, it may be useful to refer to the former gome 

 species which still bear the name of Filumnus. 



The glabrous or scarcely hairy cephalothorax of most species 

 of Seteropanope is little convex (except that of S. serratifrons) 

 and but little enlarged ; the lateral margins are armed with four or 

 five more or less prominent teeth, which are never spiDiform,and 

 the front is more or less prominent. The external antennae 

 resemble those of Filumnus, the basal joint being small and not 

 nearly reaching the front. The endostome is longitudinally 

 ridged. The inferior margin of the orbits, which are transverse, 



