167 



Skull.— Greatest leugtli, 48 ; basilar lt•n^Mll, Hb ; /.vt<t»uuilir l)r.%i.hl.. 

 31 ; nasals, 14.5 ; diastema, 11.5 ; upper molar HorieM, Id mm 



Habitat.— The southern portion of the MuUy IVniii«uU from 

 Johore through the Settlement of Mahu-oa. Negri S^-mbilun aiui Sonihcni 

 Pahang to Selangor, where it intergrades witli the Houth^-ni ncr. 

 Specimens from Ulu Selama in Northern Perak itn- v.t\ bn^'htK 

 coloured and are to l^e referred t<j .SV. iiujroi'iKoiux bit!}nil<ttu^ 



The race from Tioman Island, <SV. ni<jrovittaiu« nucrorhtfuKhtt*. 

 Kloss, is, in external characters, close to the Jitlion* furm. I>ut ♦•vho 

 duller with a greyer tail, lacking any ochrao'ous ting«'. und difffp* 

 further in the less roVmst skull with somewhat Hiualler tt^-tli .ni<l 

 feebler rostral region. 



Type.— Adult female: B. M. No. 5. 12. 7. V\. Oriffiual No. hV.\ 

 Collected at Pelepak, Johore, 24th March, 1905, by C. B. Kl..«. 



SCIURIS NIGROVITTATIS BOCKI, lubtp. «..r. 



The Sumatran form differing from typical nigrorittaiut by it« 

 somewhat smaller size and the brighter colouring of th«' flank utrip*^. 

 From the races of the Malay Peninsida it is .separable at ouce by tb« 

 pale patches behind the ears. 



Skull. — As in these forms, but smaller in all detail"*. 



Dimensions of the Type (from a skin specimen). - Head and liody 

 (c), 170 ; tail, (c), 150 ; hind foot, 43 ; ear, 15 mm. 



Skull. — Nasals, 14; diastema, 11.5 ; upper molar Hcries. i» mm. 



(The skull of the type is much broken, but from anoth.-r NjRximeii 

 it seems that the greatest length is 46 and the /yK'-mmtic breadth, 

 28 mm.) 



Habitat. — Simiatra. 



Type.— Adult female: B. M. No. 79. 6. ix. 1<>. Collei-ted b> C«rl 

 Bock at Pajo in the Padang Highlands. 



Besides another specimen from Pajo. then- aiv two hj,vuih-u- 

 skinned from spirits, in the collection, obtained by E. Moliirliani from 

 Si Kambi in Central Sumatra, which, allowing for the eflfe.-t of »|rohol 

 on the colours, are not distinguishabU- from the tyj^*-. 



The following key may serve to .listinu'uisli th.- various nieniU-ni of 

 the group : 



I. General colour above an (.liva«<'..Ms 'j.n7./.\o \ 

 l>elow gi-ey. Hands an<i b-.-t tiiu-1.% 

 speckled with yellow. 

 A. Size larger; hind foct. V^.\'j nini. 



0. Grizzle of dorsal area coarser. Jvliy darker. 

 flank stripes obsolescent ( eMpeiially th.> 



6. Grizzle of dorsal area rtncr. U'lly paler, flank 

 stripes well marked. 



i'th.. VJU. 



