Journal of the Federated Malay States museums - Sabrizain.org

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XXIV. NOTES ON THE GENUS PETAURISTA,
Pall., \\ I I II DES( RIPTIONS OF TWO
NEW RACES.
By II. C. Robinson, C.M.Z.S. and C. B. Kloss, F.Z.S.
The form ol Petaurista petaurista inhabiting the mountains
of the extreme cast of Java is separable at a glance from that
found in tin- western end of the island and in the absence of
citation of the typical locality we "have selected the Preanger
Regencies as the habitat of the typical form. The eastern
rai e ma\ be de >i :
ribed as
Petaurista petaurista nigricaudatus, subsp. nov.
Type:— Adult male with slightly worn teeth (skin and
skull), collected at Ongop Ongop, Idjen Massif. 5,700 feet, near
Banjoe-wangi, East Java, on April gth, 1916, by Federated
Malay States Museums Collector, F.M.S. Mus. No. 323/16.
Characters :
—Differing from all other forms of the petau-
rista (nitidus) section in having the general colour of the tail
black, the sub-basal portions of the hairs ferruginous maroon ;
ears dark chestnut, black orbital ring extensive, feet and hands
black, this colour more extensive than in other forms and
extending along the margin oi the uropatagium.
Colour:— Above glistening chestnut maroon, duller and
less maroon than in the West Javan form [P . petaurista) , head
and sides of the face more bay All the hairs of the upper
:
surface with black tips, most pronounced along the median
line nose chin, a broad orbital ring and the vibrissae. black.
Hands and feet black, with little or no chestnut on the metapodials.
margin of the antibrachial and interfemoral membranes
black, parachute ochraceous salmon, more rufous on
edge, lower surface similar. Ears dull brown, the hairs at the
base tipped with black, thinly clad with short black hairs on
the interior of the basal pan of the conch, mixed with brownish
chestnut at the tips. Tail glossy black above, the bases
of the hairs grey, the median area clouded with maroon, this
colour being more noticeable beneath: tip not noticeablj
blacker.
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Skull : Doc- nol apparently differ from that of /'.
p.
melanotus from the Malay Peninsula teeth slightly larger.
Measurements of the type:— Head and body, 456 (400 1 )
tail. 462 15541: hindfoot, ;\ 76); car. 41 mm., taken in the
flesh by native collector.
Measurements in parenthesis are those of an adult male /'
/ mtlano
tin from Lay Song Hon-;. Trang, Siamese Malay States. F M.S. Mus
No 1226/10.
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