Journal of the Federated Malay States museums - Sabrizain.org

:o2 Journal of the F.M.S. Museums. [Vol. VII,
on Semnopithecus buku, Martin, Ann. and Mag. Nat. Hist. 141.
ii p. 435 (1838) itself derived from Raffles' Kra Buku (Trans.
Linn. Soc. xiii. p. 247 (1821) which is quite a passable description
of the animal.
Lariscus [nsignis fornicattjs, subsp. HOC.
lyre:—Adult female (skin and skull) No. 876/15, Federated
Mala) States Museums, collected at Juara Bay, East Side of
Pulau Tioman, Pahang, on July 1st. 1915. by H. C. Robinson.
Original No. 6698.
Characters :— Differing from other forms of Lariscus insignis
(Cuv.i, m its somewhat slighter skull, the nasals broadening
less anteriorly and by having the rostrum decidedly more
arched laterally, i.e. the nasals meet it an angle instead of
lying practically in the same plane.
Colour:— As in the more southern specimens ol Lariscus
insignis jalorensis, being exactly matched by individuals from
the Triang District, Western Pahang and having the thighs
richly washed with rufous buff more so than in northern
specimens, but not approaching in richness of tint above, the
Singapore and Johore form. L. i. meiidionalis, Robinson &
Kloss. Area between the black back stripes, somewhat colder
in tint than the resl of the upper surface.
.Skull: — That of a typical Lariscus, though with the regularly
curved outline somewhat flattened in the region of the frontal?.
Nasals less splayed anteriorly and decidedly arched. Rostrum
generally more slenderly built. Bullae rather less convergent
than in the peninsular form so that the basioccipital is more
regularly quadrate in shape. The teeth are rather small but
call for no special comment.
Dimensions of the tvpe (measured in the flesh). Head
and bodv, 171 (180 1 ) : tail, 112 (100); Hindfoot, 44 1431; ear.
18 (16) mm.
Cranial measurements. Total length, 48.8 (48.2) ; condylobasilar
length. 38.0(36.9); zygomatic breadth 27.1 (26.8); cranial
breadth, 20.0 1,20.21: greatest length of nasals, 15.6 (15.8):
diastema, 12.3 (12. 1); upper molar row including pml 8.9
(8.9); least distance from tips of nasals to lachrymal notch.
21.0 (21.01 mm.
Specimens examined: — Four, the type, and an adult and
two somewhat immature males all from the typical locality.
Remarks:— Though only slightly differentiated from the
mainland race, this form appears sufficiently distinct to merit
a name. In colour it is intermediate between L. i. jalorensis,
from the mainland and L. i. meridiona lis from Singapore and
the southern part of Johore. The characters of the nasals
however separate it from both these forms.
(1) Measurements in parentheses are those of an adult male from the
samelocaHtv FM.S No 623/16