104 



SCIURrS (VITTATUS) TEXriROSTTlIS. Mltl,. 



P. Wash. Ac. ii. p. 221, fig. 13c (skull) (1900). 



(J307. 3(T9, 310, .'^12, 313, 314, 315. 316. 318; $308, 311, 317. 319. Jnara 

 Bay, I'lilo Tionian. 



Evidently the comuiouest species in Tioman. It is a larger 

 form than the representative of the same group in Aor and Pemangil. 



SCIIRIS (VITTATUS) "AORLS," Mill. 



Smiths. Misc. Coll. xlv. p. 10 (1903). 



c? 301, 303; ? 300, 302. Pulo Aor. 



Topotypes. 



Mr. Robinson also collected three Squirrels of this group on 

 Pemangil Island, close to Aor, and these would represent Miller's 

 8. pemangilensis, described just before S. aoris. I confess I fail 

 to see any difference between the specimens from the two islands, 

 though I provisionally use the name given to the Aor form. 



RHIXOSCllRUS ROBINSONI, sp. n. 

 (J340, 341, 343 ; ? 337, 338, 3.39. .342. Juara Bay, Pnlo Tioman. 



More allied to the Bornean B. Jaticavdatus, M. & S., than to the 

 Malayan B. tvpaioidea. Gray * : the tail-hairs broadly washed with 

 ochraceous. 



General colour above altout as in B. tupaioides, paler than in a 

 specimen from N. Borneo, which I provisionally accept as B. latl- 

 caudottis. 



Centre of back blackish, rump more ochraceous, especially on sides, 

 the whole dorsal area less uniform than in laticaudahis. Flanks above 

 line of demarcation little suffused with buffy, while the belly itself, as 

 in Jnticaudatvs, is buffy throughout, being more ochraceous buffy 

 posteriorly. Crown dark grizzled olive. Ears with an inconspicuous 

 light patch Vjehind them. Limbs darkening terminally, becoming 

 blackish on the hands and hind toes as in B. laticaudatvs. Tail-hairs 

 black basally and subterminally, the second and terminal rings buffy 

 or ochraceous Ituffy, similar to each other, or the terminal ring even 

 darker than the subbasal ; in the other species the ends are lighter 

 than the subbasal rings, buffy white in laticavdat'us and nearly quite 

 white in tupaioide^. 



Skull with rather smaller l)ull8e than in -R. laticaudotns, much 

 smaller than in B. tnpaioides. 



* 1 quote this name as of Gray and not Blyth, hiecanse I do not think that 

 the names in the former's " List of Mammalia," 1843, can be conBidercd technically 

 as iKymina nuda in the cases where a characteristic English name was appended to 

 them. The plan of the book not including descriptions in the usual sense. Gray 

 seems to have done his best to make up for them by applying names by which 

 the animals could be identified, and no one could any more doubt as to the 

 identity of the " .Sharp-nosed Squirrel " (p. 19.5) than of those of the " Blackish- 

 backed," "Ashy-headed," or " Grey-thighed" species referred to on p. 143. 



