10. TRoPIDoNoOTUS. 263 
71. Tropidonotus flavifrons. 
Tropidonotus flavifrons, Bouleng. Ann. § Mag. N. H. (5) xx. 1887, 
ae Mocquard, Nouv. Arch. Mus. (8) ii. 1890, p. 140, pl. ix. 
Head short, very distinct from neck. Eye moderate, Internasals 
broadly truncated in front, about half as large as the prefrontals ; 
frontal once and a half as long as broad, longer than its distance from 
the end of the snout, shorter than parietals ; loreal as deep as long; 
one pre- and two or three postoculars ; temporals 2+3; eight or 
nine upper labials, fourth and fifth or fifth and sixth entering the eye. 
Seales in 19 rows, feebly keeled, of outer row smooth. Ventrals 
146-155; anal entire ; subcaudals 95-99. Olive above, with dark 
network ; two parallel or alternating series of white spots along 
each side, upper on the sixth scale from the ventral, lower larger 
and on the outer border of the ventral; a large yellow spot covers 
the forehead and snout; sutures between the labials black ; ventrals 
whitish, with large black spots; the black predominates on the 
subcaudals. 
Total length 540 millim. ; tail 179. 
Mt. Kina Baloo, North Borneo. 
a. 3 (V. 148; C. 95). Kina Baloo. Mr. Whitehead [ 
: Paris Museum ey u 
72. Tropidonotus callistus. 
idonotus callistus, Giinth. Proc. Zool. Soe, 1873, p. 170, 
ms xvii. fig. C; Peters § Doria, Ann. Mus, Genova, xiii. 1878, 
a short and thick, very distinct from neck. Eye large. 
Rostral broader than deep, scarcely visible from above; internasals 
longer than broad, broadly truncate in front, longer than the 
prefrontals ; frontal once and two thirds as long as broad, longer 
than its distance from the end of the snout, a little shorter than 
the parietals; loreal deeper than long; one pra- and four post- 
oculars ; temporals 242; nine upper labials, fourth, fifth, and 
sixth entering the eye ; five or six lower labials in contact with the 
anterior chin-shields, which are shorter than the posterior. Scales 
in 21 rows, strongly keeled, of outer row feebly keeled. Ventrals 
156; anal divided ; subcaudals 76, Black above, with a whitish 
vertebral stripe with scolloped edge on its anterior half; a round 
white spot on each side behind the head, and a white band across 
the anterior half of the frontal and supraoculars and on the pra- 
oculars ; upper labials white, with black sutures ; ventrals and outer 
row of scales white, with a black band on each side along the outer 
ends of the ventrals. 
Total length 295 millim. ; tail 70. 
Celebes. 
a. Hgr. (V. 156; C. 76). N. Celebes. Dr. A. B. Meyer [C.}, 
(Type.) 
Lal 
~~ mii, Sn ee eS 
