166 On the Squirrels of the Sciuriia erythrasus Group. 



Dimensions (in flesh) : — Head and body 9, tail 8 inches. 

 JJab. Soutli Formosa. 



Ti/pe S ad., B.M. 94. 11. 22. 5. Baksa, Formosa, 20lh 

 Oct., 1893. Collected by Mr. P. A. Hoist. 



Sciurus ihamanensis centralis^ subsp. n. 



Similar to the last, but having a narrow stripo of chestnut 

 running from the inner side of each fore limb to the inner side 

 of each corresponding hind limb. 



Hah. Lak-ku-li, Formosa. 



Ti/pe § ad., B.M. 94. 11. 22. 4. Lak-ku-li, Formosa, 

 29th June, 1894. Collected by Mr. P. A. Hoist. 



This is evidently a hill-form inhabiting the Central 

 Mountains. 



Sciurus thaiwanensis Roberti\ subsp. n. 

 Sciurus erythrmis, Swiulioe, P. Z. S. 1862, p. 357. 



Similar to thaiwanensis ti/picuSf but having the underparts 

 of a rich deep chesnut and the general colour of the back 

 darker and ruddier. 



IJab. N.W. Formosa. 



7'ype, B.M. 62. 12. 24. 13. N.W. Formosa {Bobert 

 Swinhoe) . 



Sciurus melanogaster, Thos. 

 Sciurus inelanoyaster, Thos. Ann. Mus. Genov. (2) xiv. p. 068 (1896). 



A very dark species, above dark grizzled as in the pre- 

 ceding species ; below very dark brown, interspersed with a 

 few longer lightish hairs. Ears and feet sooty brown. Tail 

 uniformly grizzled to its end. No fulvous tips to the hairs. 



Dimensions (in flesh) : — Head and body 200, tail 17*8, hind 

 foot 47, ear 17 mm. 



Hob. Si-oban, Sipora. 



Co-type ? , B.M. 95. 1. 9. 11. Si-oban, Sipora, July 1894. 

 Presented by Dr. Modigliani. 



Key to the Species. 



A. Underparts deep chestnut, 

 a'. Tail-hairs with no fulvous tips. 

 d^. Tail with red tip. 



a'. Feet dark Sc, erythrccus typicus. 



6'. Feet chestnut Sc. e. Sladeni. 



b^. Tail with black tip. 



a'. Forehead ruloua Sc. e. bhutanensis. 



b^. Forehead rufous Sc. e. erythoyaster 



(summer). 



