A NEW MONGOOSE FROM SIAM. 



217 



oeoiis pi'eseiit while tlie under-fur i> nut blacliish ;il llie base ; the tlorsal 

 Iiairs ill i ahrifrous liave only two narrow pale bands (as in biriiMnicus), 

 in sianiensis there are five — one being basal. .V. ruhn'fronK seems 

 to have a modified rufous phase but is ajiparanfly altogether a duller 

 animal, tlie pale jiliase being grej'er and the bright less t'erriiginous. 



Measurements in millimetres of M- t'iamensif and J/. Iiiriuaniciis. 



Head and buciv 

 Tail 



Hind-foot. s. u. 

 Kir 

 Skull: — 



Greatest length! .._ 

 Condylo-basal length- 

 Basal" leiigth^^ 

 J'alate lengtli^ 



Upper tooth row (c — m') alveolar 

 Basi-cranial lengtii 

 Palate breadth at m' (external alveol 

 m ' — m ' 



Rostral breadth above canines 

 Post-urbital constriction 

 Cranial breadth ... 

 Mastoid breadth ... 

 Zygomatic breadth 

 Greatest length of bulla 



,, breadth across bidlae 

 „ basi-occipital breadtli 

 ,, breadth of m' 



,, pin* ... 

 lengtii ,. „ 

 ,, diameter „ ,, (diagonal) 



■XV) 



I Fioiit o( [iru'iuaxilhuies to liaeli I'f (n-ci|jiii,l cre^^l. 

 - ,, ,. to ., ,, eoiidyle. 



3 „ „ ,, fidiit of fdiaiiii'ii niai^imui. 



i „ „ „ teniiinatiou vi pulate. 



VUL. n, MAY UU7. 



