238 



MR. R. T. POCOCK ON THE 



relatively very large {Funavibidus, Tamiodes), relatively small 

 {Ratufa, Protoxerus), minute (Funisciurus, Paraxerus, .Etho- 

 scmrus), or absent (Relioscmrus). It is, however, when present, 

 always a simple bone without the spatulate expansion at the 

 apex seen iu the Sciurinae, without the accessory blade of the 

 Tomeutiua?, and without the compressed downturned lamina 

 of the Xerin£e. The ears are always relatively shorter and wider 

 and less tubular at the base than in the Sciuriujfi, but are without 

 the peculiarities of the ears of the Xerinse and altogether better 

 developed. 



Genera: Fimamhidus, Tamiodes, Ratufa, Protoxerits, yEtho- 

 sciurus, Funisciurus, Puraxerus, Heliosciurus, and 

 probably the other African genera admitted by Thomas, 

 including possibly even Myoscvurus. 



Distrihiotion. Oriental and Ethiopian Regions. 



When the genera are better known, this group will perhaps 

 be split up into several subfamilies. So far as my observations 

 go, the genera fall into the following sections by the characters 

 established in this and my previous paper : — 



a. Tamiodes, with a thick glans penis with terminal labiate 

 orifice and a large baculum with its distal extremity bent 

 upwards at a right angle to the rest of the shaft. 



/3. Funambulus, with the glans terminally narrovved, the simple 

 orilice on its right side, some distance behind the tip of 

 the glans, and. the baculum large and gently curved upwards 

 distally. 



y. Ratufa, with the baculum relatively quite small, curved as in 

 Funambulus, but stouter and bevelled below distally ; (glans 

 unknown) ; the feet in their pad development quite different 

 from those of the other genei-a. 



I. Protoxerus, with the glans possessing a median swollen area 

 carrying the orifice, and an elongated narrower distal portion 

 supported by a relatively small baculum not differing greatly 

 from that of Ratufa, but with a button-like apex and a 

 scalloped proximal end. 



e. Funisciurus, Paraxerus, JEthosciurujS. Glans with a marked 

 median grooved or laminate swelling and a slender distal 

 portion as in Protoxerus; but the distal portion flexible, 

 laterally serrulate, and cariying a minute undifferentiated 

 baculum close to the apex. 



4. Heliosciurus. Penis and glans exceedingly long, the glans 

 with narrower, longer swelling, and exceedingly thin, long 

 filiform distal portion without trace of baculum. 



Of other genera that have been established, Tamiscus, recently' 

 dismembered from Paraxerus, probably falls into section e. But 

 whether Epixerus comes into g or e I am unable to surmise. 

 Probably an examination of the glans penis and baculum will 



