Ilippositlerus armigor rt/j</ Commcrsoni Types, 13 



more or less distinct liji;lit longitudinal stripe hordcriii;^ 

 citlicr side of the hinder hack, along the i)Iagioputagiiun. 



//. gigas. — Y-patch very pronounced, of a colour perhaps 

 best defined as an extremely dark shade of " hair-brown " ; 

 below the tips the h.airs are considerably lighter (greyish 

 " drab"), at the extreme base very dark. The whole of the 

 nppcrside in front of t!ie Y-patch light grey; this colour 

 confined to the tips of the hairs; below the tips the hairs 

 are dark " drab," further down lighter, at the extreme Ijase 

 again dark-coloured. Lotigitudinal stripe on either side of 

 hinder back well marked, of the same light grey colour as 

 the anterior part of the upperside. A well-marked white 

 patch at the iu-sertion of the iirojjatagium. Underside very 

 light, almost whitish, or washed with greyish or yellowish ; 

 base of hairs very dark "drab " or " dral)-grey."— The three 

 skins here described are all of young (idiilis, the epiphyses 

 of the metacarpals not quite ankyioscd, the teeth unworn ; 

 the whole of the coloration is strongly like that of a young 

 H. diadenia igpicus from Java. I have but very little doubt 

 that aged individuals will prove to be darker (as is the case 

 in H. diadeina). 



A fourth skin (adult, uusexed ; teeth slightly worn, 

 epiphyses ankylosed) is of the russet phase. The style the 

 same, but the whole of the pelage strongly washed with 

 " russet " ; the flank-patches (at the propatagium) indistinct. 



H. Commersoni mavungensis. — Practically quite like the 

 non-russet phase of H. gigas. The skin is of a young adult, 

 epij)liyses ankylosed, but teeth unworn. 



H. thomensis. — On the whole, both above and below, some- 

 what darker than H. gigas; flank-patches quite distinct; 

 lateral stripes bordering hinder back somewhat obliterated. 

 — The three skins are of individuals with slightly worn teeth 

 and the epiphyses ankylosed, thus a little older than the 

 light-coloured series of H. gigas. 



H. Commersoni ti/picus. — Practically indistinguishable 

 from //. thomensis. One skin, epiphyses ankylosed, teeth 

 almost unworn. 



As a general conclusion : — The style of colour is the same 

 in all of the species. There is prol^ably no essential differ- 

 ence in the details of the coloration between the species, 

 provided, of course, that individuals of approximately the 

 same age are compared. Young and young adults arc 

 lighter coloured, with the markings and stripes more strongly 

 marked. A russet phase occurs. 



