368 Mr. 0. Thomas on new Species of 



it approaches tlie subgenus Centronycteris, and the nakedness 

 of the iiitcrfemoral will readily distinguish this bat from any 

 of its allies. 



Sciurus Ingrami^ sp. n. 



Size about as in " S. cestnans cuscimts " and 8. irroratiis, 

 larger than in the true S. cvstuans. Fur longer and looser 

 than in S. astiians, hairs on back about 12 niillim. in length. 

 General colour above finely grizzled olivaceous grey, varying 

 somewhat towards brownish ; the individual hairs blackish, 

 with yellow subterminal rings. Head like back. Eyes 

 surrounded by w hitish rings. Ears rather more fulvous, the 

 hairs dark lasally, with fulvous tips. But little or no trace 

 of a yellowish postauricular patch. Chin and throat white. 

 Chest and belly pale buffy, varying almost to white,, the hairs 

 sometimes j)lumbeous basally, sometimes buffy to the roots ; 

 line of demarcation on sides not sharply defined. Outer side 

 of limbs and upper surfaces of hands and feet like back^ the 

 digits tending rather more towards yellowish. Inner side of 

 limbs bufty, like the belly. Tail-hairs broadly ringed for 

 their basal two thirds with dull fulvous and black, their distal 

 thirds black subterminally and yellowish white distally, the 

 two latter colours giving the general tone of grizzled black 

 washed with yellowish to the tail as a whole. Mammae 8, 

 one pair in or close behind the axillae, two pairs on the belly, 

 and one in the groin*. (Three females examined.) 



Dimensions of the type (measured in the flesh) : — 



Head and body 190 millim. ; tail 185; hind foot, s. u. 44, 

 c. u. 48; ear 21. 



Skull: greatest length 49; basilar length 37; greatest 

 breadth 28; nasals 15 (diagonally) x 6'5 ; interorbital 

 breadth 16 ; palate from henselion 21-7 ; diastema 13 ; length 

 of upper tooth-series 7*3. 



Bab. Tunnel, Southern Minas Geraes : alt. 1200 m. 

 (Two specimens.) Two other specimens from Cruzeiro, Sao 

 Paulo : alt. 530 m. 



Type. Female. Original number 433. Collected 7th De- 

 cember, 1900, by Mr. Alphonse Robert. 



This species is no doubt the '^Sciurus cestuans " of Wagner, 

 Burmeister, Hensel, Pelzeln, Winge, and other writers on 

 Brazilian mammals ; but Linnteus's description is based on 

 the squirrel of Surinam, which is decidedly smaller and both 

 in colour and other characters is clearly a different animal. 

 Shaw's " Myoxus guerlingus^'' is also Guianan in origin. 



* One specimen has an additional anterior mamma on tlie right side. 



