of the Sciurus Piovuslii (Jruu^. 



a^. White stripe unbroken from tip of 



nose to boel of liiml foot Sc. Frevostii typictu. 



6*. White stripe bmken. 



o*. Htiiis of tuil with no fulvous tips, 

 a*. Light pnrtof tlii^'h not grizzled, 

 a', tjhouldcrs fulvous. 



a*. Sides of face and neck iron- 

 grey Sc. P. bangkanut. 



b\ Sidesoffaceand neck white, j *.^; p ll^nitu^. 

 6\ Shoulders chestnut. 



c*. Sides of face and ears iron- 

 grey Sc. P. Rafflesii. 



b*. Light puit of thigh slightly 

 grizzled. 

 c'. Face and shoulders fulvous. 



Smaller Sc. P. navigator. 



6*. Hairs of tail with fulvous tips. 



a*. Light part of tliigh not grizzled. 'Sc. P. saraicakenaii. 

 6*. Light |iait of thigh grizzled. 

 a'. Sides of body above the white 



lateral .>-trip!» grizzled .... Sc. P. borneoensia. 

 6'. Sidesof body above the white 



lateral stripe not grizzled . . Sc. P. kuchingenna. 

 6'. Whitish lateral stripe, if preSL-nt, very 

 faint. Face and checks black. 

 a*. Lateral stripe very faint, but spread- 

 ing over tiiighs Sc. fufoniger typicria. 



6*. Lateral .stripe absent, or sometimes 

 very faint and short, never on 



thighs Sc. rufoniger pluto. 



B. Hairs on the back annulated. 

 a^. Lateral liglit stripe present. 



a^. Upper part of thighs lighter than 

 back. 



a*. Feet rich chestnut -Sc. Caroli typicua. 



b^. Feet grizzled gr.-yish. 



a*. Eye surrounded with rufous 



ring Sc. C. griseicauda. 



b*. Eye not surrounded with rufous 



ring Sc. atricapillus. 



b^. Upper part of thighs not lighter 

 than back. 

 a*. Larger, length 275 ram. Lateral 



light stripe pale yellow Sc. baluensis typicua. 



b*. Smaller, length 200 mm. Lateral 

 light stripe nearly absent. 



a*. Feet grizzled Sc. b. suffusua. 



6*. Feet black Sc. Schlegeli. 



6'. Lateral light stripe absent Sc. erythromelaa. 



177 



