20 Journal oj the F.M.S. Museums. [Vol. vil. 



Two skins from Aver Kring, Negri Sembilan, on the 

 eastern watershed of the Peninsula (Nos. 239, 240/12) are 

 typical, but a third has the speckled markings on the feet well 

 developed, while there is a tendency to the same change on 

 the hands. (No. 241/121. 



But of seven skins from Triang, about 20 miles north from 

 Ayer Kring, three, Nos. 475. 477, 480/12 are typical, though the 

 feet are somewhat paler chestnut, while the others show- 

 marked variations. 



One No. 479/12 has the hands and feet almost entirely 

 white, the colour of the hands soiled with chestnut and the 

 feet with a narrow ring of chestnut near the ankle. The bases 

 of the hairs throughout black. 



Another, No. 478/12 has the hands dull chestnut, inter- 

 mixed with many black and silvery white hairs and the feet 

 silvery, dark maroon towards the ankle. The point of the 

 shoulder blackish and the shoulder above much sprinkled with 

 blackish hairs so that the white lateral stripe appears partially 

 interrupted. No. 476/12 is more nearly normal but has the 

 feet decidedly paler chestnut and the feet dirty whitish on the 

 distal phalanges, chestnut on the proximal. No. 481/12 differs 

 in the greater extension of white down the forearm towards 

 the fingers, which are orange, and in the paler tint of the feet, 

 which are clad with buffy golden hairs towards their 

 extremities. 



These variations all occurring in specimens from one 

 localitv and which are not correlated apparently either with 

 the age of the individual or with that of the pelage, which is 

 fairly fresh and uniform in the whole series, appears to in- 

 dicate a state of unstable equilibrium in the species, parallel to 

 but on a smaller and less striking sc;:l<' than that described by- 

 Messrs. Thomas & Wroughton in the Chindwin squirrels of the 

 superspecies, Callisciurus sladeni Journ. Bomb. Nat. Hist. Soc. 

 Bombay. 



The facts are interesting and worth}' of note and though 

 I do not think that the creation of yet another subspecies is 

 justified with existing material it may be permissible to borrow 

 a method of nomenclature from the entomologists, and record 

 the form as an aberration.* 



Sciurus prevostii, subsp. prevostii. 



ab. meticulosus, aberrat. loc. nov. 



Type of the Aberration. Adult female (skin and skull). 

 F.M.S. Museums No. 479/12, collected on 9th September, 1912 

 by Museum Collector, at Triang, South-western Pahang. 



Characters. Similar to Sc. prevostii prevostii, but having 

 the white side stripe practically continuous from the tips of 

 the fingers to the tips of the toes. 



• Rothschild, Hartert and Jordan, Nov. Zool I. p. I. (1894). iid. op. cit. 

 II. p. 180, para 2. (1895). 



