135. HOtOOBKEHUM. 33 



nasals broader tban long, a little smaller than the prsefrontals ; 

 frontal nearly twice as long as broad, longer than its distance from 

 the end of the snout, shorter than the parietals ; two supprposed 

 loreals ; one prse- and two postooulars ; temporals 1+2; seven 

 Tipper labials, third and fourth entering the eye ; four lower labials 

 in contact with the anterior chin-shields, which are longer than the 

 posterior. Scales in 19 rows. Yentrals 137; anal entire; sub- 

 caudals 31. Brown above, with scattered small yellow spots ; 

 lips, sides, and outer ends of ventrals closely dotted with blackish ; 

 each labial with a round yellow spot ; a cresoentic yeUow marking 

 on each side of the neck, just behind the head ; belly and lower 

 surface of tail bright yellow. 



Total length 348 millim. ; tail 48. 



Andrangoloka, Madagascar. 



135. HOLOGEREHUM. 



Hologerrhum, aUnth. Cat. Col. Sn. p. 186 (1858). 



Maxillary teeth 20, equal, followed, after a short interspace, by a, 

 pair of enlarged, grooved fangs ; anterior mandibular teeth strongly 

 enlarged. Head slightly distinct from neck; eye moderate, with 

 round pupil. Body cylindrical ; scales smooth, without pits, in 17 

 rows ; ventrals rounded. Tail moderate ; subcaudals single. 

 Hypapophyses developed throughout the vertebral column, 



Philippine Islands. 



1. Hologerrhum philippinnm. 



Hologerrhum philippinum, Giinth. Cat. p. 186 (1858), and Proc, 



Zool. Soc. 1873, p. 171, pi. xviii. %. B.* 

 Cyclochorus maculatus, Jan, Icon. Gin. 36, pi. vi. fig. 3 (1870). 



Eostral broader than deep, scarcely visible from above ; inter- 

 nasals as long as broad, a little shorter than the prsefrontals ; frontal 

 twice as long as broad, longer than its distance from the end of tho 

 snout, a little shorter than the parietals ; loreal as long as deep ; 

 two prae- and two postoculars; temporals 1+1 ; eight upper labials, 

 third, fourth, and fifth entering the eye; four lower labials in 

 contact with the anterior chin-shields, which are shorter than the 

 posterior. Scales in 17 rows. Ventrals 144; anal entire; sub- 

 caudals 40. Brown above, with a few alternating black spots on 

 the anterior part of the back, and one or two black cross-bars 

 behind the head ; a black streak on each side of the head ; passing 

 through the eye ; upper lip yellowish ; a black line on each side of 

 the posterior part of the body and of the tail; lower parts yellowish, 

 with a black dot at the outer end of each ventral shield ; on the 

 tail these dots are coniluent into a line. 



* The specimen from Placer, Mindanao, referred to this species by Giinther 

 (Proc. Zool. Soc. 1879, p. 78), belongs to Cyclocoras lineatus. 



VOL. III. D 



