SCIURUS. 233 



SciUETJS GRiSEiMANTJS, A. M.-Edwards. 



Scims ffriseimamis, A. M.-'Eiwa.Yd.s, Rev. et Mag. Zool. Juin 1867, p. 195; Reck des Mammif. 



1868-74, p. 164. 

 Macroxus inornatm, Gray, Ann. and Mag. Nat. Hist. Oct. 1867, vol. xx. p. 282. 

 Macroxus leiuiopus, Gray, Ann. and Mag. Nat. Hist. Oct. 1867, vol. xx. p. 282. 



It appears highly probable that the squirrels to which the above synonymy 

 refers will be found to be specifically identical with S. ccmiceps. S. griseimcmus has 

 a very strong resemblance to the grey phase or variety of that species, — indeed so 

 marked that when it is laid beside a series, it is hardly possible to distinguish the one 

 from the other. 



Moreover, I cannot point to a single character by which to separate the skull 

 of typical S. caniceps from the skull of a specimen of S. griseimamis obtained from 

 Prof. A. M.-Edwards. 



S. leucoptis, Gray, is identical with S. griseimmius, and S. inornatus corresponds 

 to the grey phase of S. caniceps. 



These squirrels are from Saigon, the Laos mountains, and Cambodja. 



SciURUS ATEODORSALis, Gray. 



? Sciwrus flavimanus. Is. Geoff. St.-Hil. Guern. Mag. de Zool. 1832, Voy. aux Ind. Orient. 



(B^langer) Zool. 1834, p. 148; Gervais, Voy. au tour du Monde (Eyd. et Soul.) Zool. vol. 



i. 1841, p. 40; Schinz, Syn. Mamm. vol. ii. 1845, p. 34; Blyth, Journ. As. Soc. Beng. vol. 



xvi. 1847, p. 872. 

 Sciurus atrodorsalis, Gray, Ann. and Mag. Nat. Hist. vol. x. 1842, p. 263 ; Hand-List Mamm. 



B. M. 1843, p. 143; Blyth, Journ. As. Soc. Beng. vol. xvi. 1847, p. 872, pi. xxxvii. fig. 2; 



ibid. vol. xvii. 1848, p. 345; ibid. vol. xviii. 1849, p. 602; ihid. vol. xxiv. 1855, p. 477; ibid. 



vol. xxviii. 1859, p. 276; «fe/. vol. xliv. (ex. no.) 1875, p. 36; Cat. Mamm. As. Soc. Mus. 



1863, p. 105; Horsfield, Cat. Mamm. E. Ind. Co.'s Mus. 1851, p. 154; Peters, Proc. Zool. Soc. 



1866, p. 428; W. T. Blanford, Ann. and Mag. Nat. Hist. vol. i. 1868, p. 152. 

 Sciurus vittatus, Wagner, Schreber, Saugeth. Suppl. vol. iii. 1843 (in part), p. 199; Cantor, Journ. 



As. Soc. Beng. vol. xv. 1846, p. 250 (in part). 

 Sciurus hyperythrus, Blyth, Journ. As. Soc. Beng. vol. xxiv. 1855, p. 474; Cat. Mamm. As. Soc. 



Mus. 1863, p. 182. 



In ^S*. atrodorsalis there are two well-marked phases of pelage, one in which the 

 black on the back is present and another in which it is entirely absent. Young and 

 adult animals alike are met with exhibiting each of these phases. 



In the phase in which no black is developed, the upper parts of the animal and 

 the feet are a yellowish-rufous, the upper surface of the head, as far backwards as 

 the ears inclusive, is generally orange-red, the under surface from the chest back- 

 wards and the inside of the limbs being more or less chestnut ; the under surface of 

 the neck is orange-yellow, or almost concolorous with the fulvous upper parts, the 

 orange-yellow tending to form a mesial line on the chest. The tail is very variable ; 

 in a young specimen it has seven, alternate, orange and black bands, the orange being 



F 2 



