356 MR. C. BODEN KLOSS ON 
The discovery in the extreme south of Tenasserim of 
T. clurissa Thomas, (Journ. Bombay N. H. Soe. XXV, 1917, p- 200) 
which was described as a full species, seems to me to supply evidence 
of complete gradation between the southern brightly-coloured, 
long-snouted tupaias with 4 mammae (“ferruginea” forms), and the 
northern dull, short-snouted animals with 6 mammae (“ belangeri” 
forms) and to make it: now necessary to regard all of them as 
merely subspecies of one species, 7. glis (Diard) of Penang, rather 
than to establish the specific distinctness of other animals than glis 
(cf. antea p. 54). The animals listed above must, I think, be re- 
yarded as examples of belangeri. I have seen no skins of topotypes, 
hut two skulls of adults from Lower Pegu and South Arakan have 
rostral lengths (tip of premaxillaries to lachrymal notch) of 19.8 
and 19 min., and in this respect the present series, in which the 
rostrums so measured range between 18 and 20 mm., agrees with 
them. 
All are dull-coloured animals with a well-marked neck- 
stripe and, though two or three are darker throughout than the 
rest, in none of them is the rump washed with ochraceous; or if it 
is the colour is hardly appreciable, and generally oceurs on the 
shoulders also. Mammae 3 — 3 = 6: 
They cannot be referred to chinensis Anderson, from Yunnan, 
near Bhamo, also a dull-coloured animal, as in it the neek-stripe is 
practically obsolete, while from an intermediate locality (Nan, 
North Siam) Thomas has deseribed a form, lwofum? and also on 
either side of chinensis has defined other races, siccata? from the 
Lower Chindwin, Burma, and yuna!is? from Mongtze, S. E. Yunnan, 
wll being quite different in colour. My specimens from 8S. W. Siam 
(which do not seem to differ from the others) doubtless represent 
lenasler vecently deseribed by Thomas from the Great Tenasserim 
River in the same latitudes,’ but that name seems antedated by 
| The north-eastern tupaias (chinensis, yunalis, modesta, concolor, etc.) 
all seem to differ from the western and southern races in the absence, or 
great redaction, of the neck strive. 
2 Ann. & Mag. Nat. Hist. (8) XID p. 243-4 (1914). 
“ Journ, Bom bias Nat. Hist Soc. i. Be }. 20) (Sept. 1917). 
JOURN, NAT, HIST, SOC, STAM, 
