696 



NVCriMKNK. 



Ki;pt02isis of (he ^jjccies.* 



Dorsal stripe navruw (not nearly g of breadth 

 of furred area of biick), generally well-niar];cd 

 from nape to interfemoral, sometimes (N.alhi- 

 venier, minutus, varius, cyclvlis) obsolole 

 anteriorly. 

 7. 8uiall : forearm 50-59, c-m' (crowns) 87- 

 lO-y mm. [Sexual colour difference, so 

 far as known, as in Ci/nopfcrus, i. e., males 

 similar in colour to females, but with fore- 

 neclv and flanks much richer in colour.] 

 a . m' subequal in size to p' ; ears un- 

 modified [N. PAPUANUS anoup.] 



ft". Inner cusp of p^ not completely fused 

 with outer. General colour of back 

 practically uniform (except for pre- 

 sence of dorsal stripe). 

 a'. Larger : forearm o4'5-59 ; dentition 

 heavier : c-m' 9 7-10-3 mm. ; dorsal 

 stripe broader (| of furred area of 

 back) and well-marked from nape 

 to interfemoral ; membranes usually 



from 2nd toe. (New Guinea and [p. 698. 



surrounding islands ; Queensland) . . 

 V. Smaller : forearm 50-o4'5 ; dentition 

 weaker: c-m' 8-7 mm.; dorsal 

 stripe narrower (,'j of furred area 

 of back), often ill-deiined or indis- 

 tinct anteriorly ; membranes usualh' 

 fjomSrdtoe. (Gilolo oroup) .... 

 b'. Inner cusp of p' completely fused with 

 outer. Colour of back conspicuoush' 

 mottled with darker tips to the hairs ; 

 dorsal stripe indistii.ct in anterior 

 half or third of back. Forearm 51- 

 55 mm. 

 c'. Teeth smaller: c-m' 8-8 mm.; fur [p. 701. 



not longer than usual. (Celebes).. 8. N. minutus, 

 d^. Teeth heavier : c-m' 10 mm. ; fur 



longer. (Amboiua group) 4. ..V. vurius, p. 702. 



1. N. pajmanus, 



[p. 700. 

 2. X. albivevier, 



* The specific variations in the skull and dentition of this genii.s are but 

 small ; one tliird of x\\p number of species are based on single specimens ; 

 and the geograiihical distribution oi most is as yet", but imperfectly known. It 

 is evident, therefore, that the arrangement of the species in four groups as 

 indicated in the above Synopsis must be considered merely provisionii), 

 subject to perhaps essential modifications in the future. The tyclofis and 

 aedo groups will probably prove to be sufficiently vrell founded to be allowed 

 to stand. On the other hand, N. rohinsoni cannot be allocated with certainty, 

 60 long as the females are unknown : and the line between the papvanns uniX 

 i-ephrifote» groups will remain a little imcertain, so long as the sexual colour 

 difference in N. alhimntcr, miimUis, and varius has not been definitely proved 

 to be essentially the same as in N. jMfwinus. 



Anyone desirous of identifying specimens of this genus will find it useful 

 fur such purpose first to consult the geographical table on p. 690. 



