119 



hy Bonhote (P. Z. S., 190(3, p. 7), agree amoiij,' themselveH uiiU differ 

 very markedly from jalorcusis in havin<^' the si<les uu.l lluukn verv 

 mueli more rufous, almost orauge. — H. C. K. au<l C. li. K.J 



n. RHIXOSCIURUS TUl'AlOlDIvS,* 1;l\iii. 

 S (373, 671. TuiijoDg Malini, Perak-Sclau^'or bouiulurv. 

 a" 2005, 2037; ? 2001, 2070. Chcras, Sclaiigor. 



The origimil tupaioides may be readily disliuguished \\\ its white- 

 washed, tail, the tips of the hairs being either white, or with but the 

 faintest trace of buffy, in niarked contrast to the strungly bufTy-wubhed 

 tails of all the other members of the genns. 



Dr. Annandulc, of the Calcutta Museum, has been gixjil enough to 

 inform lis that, in the original specimen described liy Divth, tin- '* tips 

 of the hairs of the tail appear to have been pure white without auv 

 trace of ochraceous whatever." 



The present collection includes a magnificent series of liltiiifji>ruiniii, 

 a genus so rare that the British Museum only possessed four skins uf 

 it before we received the typical series of It. rohin><i>ni froui Tinmaii 

 last year, and judging by the lists published. Dr. Abbott's collectiuua 

 included but very few examples of it. 



Now, however, we have before us no less than 4'! s|»eciintns, inclu- 

 ding series from each of the localities chiefly dealt with in the present 

 paper. 



It is a curious thing that in this genus the cheek-teeth wear down 

 with unusual rapidity, so that many old specimens have the te<-th 

 worn quite down to the roots, or even altogether absent. In «>n«' cjumj 

 we have had to select as type a specimen without any teeth, but ua 

 these, when present, are of little diagnostic value, such a selection docs 

 not materially matter. 



The forms contained in the genus may Ije arranged as l"oll,.\v> : 



A. Tail hairswashed with whitish, Selangor,Mahicca,ctc. tupaioidos 



B. Tail hairs tipped with buft'y ochraceous. 

 a'. Muzzle of skull comparatively bruad. 



a". Hind foot 39 mm. or upwards. 



a'". Skull shorter, bullte smaller, Perak poracor 



h'". Skull longer, bulhc larger. 

 a K Hind foot averaging about 40 mm., Singapore loo 

 IK Hind foot averaging about 42 mm.. Khio 



Islands loo rhioniB 



h". Hind foot 36-88 mm., Tionian Island robinsoni 



h'. ]\Iuzzle of skull verv narrow, panillcl sided, bullif 



small, Borneo ..'. ... - loticaudatua 



* On further cousidcration, Thomas decides not to pi 

 tion ("Journal, Federated Muhty States Mus.," ii., p. lOi, U^ 

 names in Gray's List of Mammals, 1H43, shoul.l bo considen-d t 



scriptions. As a rcsuK , the typo of tlie present siwcie- " ' ' • 



in 1855 by Blylh and not that in Groy's List. 



