CRTJSTACEA OF THE MEEGUI AECHIPELAGO. 53 



presents a small hiatus close to the external orbital angle. The 

 abdomen of the male is seven-jointed, and the legs resemble those 

 of JPilumnus. 



The genus Epixanthus is distinguished from Heteropanope by 

 its different physiognomy — the cephalothorax is more enlarged, 

 the orbits are circular, the hands, and especially the fingers, are 

 more slender, and the basal joint of the external antennae, which 

 is united with the front, is large. 



As regards the genera JEitrycarcinios and Filumnus, in the 

 latter of which I propose to include those species the carapace 

 of which is more or less hairy and armed with spiniform antero- 

 lateral teeth, it is unnecessary to say that they are generically 

 scarcely distinct irova. IIeteropanope,hMt thd^t at the same time 

 they are suflS.cient]y characterized by their whole outer physio- 

 gnomy. 



I include in the genus Heteropanope the following species : — 

 a. serratifrons, Kiuahan ; S. glabra^ Stimps. ; H. australiensis, 

 Stimps. ; S. eucratoides, Stimps. ; H. crassimana, A. M.-Edw. ; 

 H. granulosa, Miers ; and S. indica, u. sp., — observing, however, 

 that a. australiensis and H. crassimana are probably identical 

 with H. serratifrons. 



38. HETEEOPAisroPE iNDiCA, u. sp. (PI. III. figs. 1 & 2.) 

 Two specimens, a male and a female, were collected in the 

 Mergui Archipelago. 



The cephalothorax of this pretty small Crustacean is broader 

 than long ; the distance between the third an tero -lateral teeth, 

 where the cephalothorax is broadest, being in proportion to the 

 length as 15 to 10|. The upper surface is rather depressed, 

 thougli somewhat declivous towards the front and the lateral 

 margins ; it is covered with a few, sparsely distributed, minute 

 hairs, which are, however, scarcely visible to the naked eye. 

 The regions of the upper surface are faintly marked by shallow 

 inter-regional grooves. The upper surface is smooth poste- 

 riorly ; on the anterior half it is marked with some transverse, 

 minutely granulated, pubescent, elevated lines, five on each side. 

 Two small elevated lines are found on the epigastric lobes, sepa- 

 rated from one another by the faint mesial frontal furrow. Two 

 other transverse ridges occur on each protogastric lobe, placed in 

 the same transverse line near one another, the external of which 



