215 



ON A NEW MONGOOSE FROM SIAM. 

 JJy C. Boden Kloss, F. Z. S. 



Mungos siamensis, nov. 



Types :— Adult female ( skin and skull ) No. 2101. Obtained at 

 Miiang I'rae, North Siani, on 11th May 1916, by Messrs. WiUianisou 

 and Smith's collectors. 



Adult female (skin and skull) No. 2409. Obtained at Lat Bua 

 Kao, East Siam, on 18th Sept. 191G, by Mr. W. J. F. Williamson's 

 collector. 



Colour. Dull phase ( No. 2101 ) : — Pelage of the upper surface 

 annulated ; median area of back warm sepia and buffy white, the 

 former changing to mummy brown on the sides ; the short underfur 

 of the same colour as the dark annulatious but tinged with greyish. 

 Fore and hind-feet speckled tawny and blackish ; fore-limbs washed 

 with tawny, tlieir outer sides dark. .Muz/.le to nape deep ferruginous 

 speckled with black, the muzzle blackish ; space between eye and ear 

 speckled p:der ferruginous ; ears tinged with ferruginous ; lower cheeks 

 clear bright tawny ; chin and throat clear tawny buff, hairs of the rest 

 of under surface of body greyish brown at base, buffy at tip, not annu- 

 lated. Tail rather paler below than above, the median line washed 

 with tawny especially at base and tip. 



Bright phase (No. 2 LG9) ; — In the rufous phase the whole of 

 tlie upper surface is suffused with deep ferruginous ( burnt sienna on 

 the median line of back, rich tawny brown on sides and tail ) and the 

 short under-fur is also richer in colour than in the didl phase : but on 

 the longer hairs the red is confined to the distal portions, so that buffy 

 white annulations are still present basally and show through the red 

 suffusion. Entire under surface of body and limbs ochraceous-tawny to 

 tawny sharply margined : median line of tail below clear rich tawnj*. 



Sl'ull cuul teeth. Do not appear to show any special pecu- 

 liarities. 



There are slight differences in the skulls of the types, that from 

 Lat Bua Kao being smaller and rather less aged with smaller bullae but 

 greater post-orbital breadth : the termination of the palate is dentate 



VOL. II, MAY 1317. 



