CRUSTACEA OF THE MERGUI ARCHIPELAGO. 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 Piluwmnus. 
The genus EHpixanthus 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 antenne, which 
is united with the front, is large. 
As regards the genera Hurycarcinus and Pilumnus, 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 from Heteropanope, but that at the same time 
they are sufficiently characterized by their whole outer physio- 
enomy. 
I include in the genus Heteropanope the following species :— 
Hi. serratifrons, Kinahan; H. glabra, Stimps.; H. australiensis, 
Stimps.; H. eucratoides, Stimps.; H. crasstmana, A. M.-Kdw. ; 
H. granulosa, Miers; and H. indica, n. sp.,—vobserving, however, 
that H. australiensis and H. crassimana are probably identical 
with H. serratifrons. 
838. HEeTEROPANOPE INDICA, n. sp. (PI. IIT. 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 antero-lateral teeth, 
where the cephalothorax is broadest, being in proportion to the 
length as 15 to 103. The upper surface is rather depressed, <' 
though 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 
ry A 
