93. OLiaoDON. 237 



as its dist-ance from the frontal ; suture between the interuasak as 

 long as that between the pnet'rontals, or a little shorter; frontal 

 much longer than its distance from the end of the snout, as long as 

 the parietals ; no loreal, the -posterior nasal sometimes forming a 

 suture with the prseocular ; pra3ocular single ; two postoculars ; 

 temporals 1+2, or 1 + 1 + 2; upper labials seven, third and fourth 

 entering the eje ; four lower labials in contact with the anterior 

 chin-shields; posterior chin-shields about two thirds the length of 

 the anterior. Scales in 17 rows. Ventrals 129-142 ; anal divided ; 

 subcaudals 25-36. Brown above, with more or less distinct darker 

 cross lines : head with dark symmetrical transverse markings, which 

 are usually connected by a median longitudinal streak. Lower 

 surfaces white (in spirit) with square black spots, both colours 

 being distributed in nearly equal proportion. 



Total length 330 millim. ; tail 50. 



South-western India. 



a. $ (V. 132 ; C. 27). Anamallays. Ool. Beddome [C.]. 



(Type.) 

 b-c, d-f. S (V. 137, 129 ; Wyuad, 30oO feet. Col. Beddome [0.1. 



C. 33, 36), 2 (V. 13(3, 



139 ; C. 25, 28), & vg. 



(V. 142 ; C. 26). 



4, Oligodon bitorquatus. 



Russell, Ind. Serp. ii. p. 39, ]il. xxxiv. 



Oligodun bitorquatu;?, Bvie, Isis, 1827, p. 519. 



Calaiiiaria oligodou, Schleg. Fliys. Serp. ii. p. 40, pi. i. figs. 27-29 



(1837), and Abbild. p. 96, pi. xxv. 

 Oligiidon subquadratus, Duvt. ^- Bibr. vii. p. 65 (1854) ; Giinth. Cat. 



p. 21 (1858) ; Jan, Arch. Zoul. Anat. Phys. ii. 1862, p. 37, and 



Icon. Gen. 13, pi. iv. figs. 5 & 6 (1865). 

 Rabdosoma amboineuse, Bleek. Nut. Tijdschr. Nederl. Ind. xxii. 



1860, p. 42. 



Nasal divided ; portion of rostral seen from above shorter than 

 its distance from the frontal ; suture between the internasals shorter 

 than that between the pr;Tefrontals ; frontal longer than its distance 

 from the end of the snout, as long as or a little shorter than the 

 parietals ; loreal usually present, a little longer than deep ; one 

 prte- and two postoculars; temporals 1 + 2 or 2 + 2; seven upper 

 labials, third and fourth entering the eye ; three or four lower 

 labials in contact with the anterior chin-shields ; posterior chin- 

 shields one half to two thirds the length of the anterior. Scales 

 in 17 rows. Ventrals 140-155; anal entire; subcaudals 35-4G. 

 Purplish brown or blackish above, with yellow (or red) dots and 

 usually a vertebral series of larger spots ; head with symmetrical 

 blackish markings and one or two chevron-shaped yellowish bands, 

 the second on the occiput and nape ; belly red, with quadrangular 

 or transverse black spots. 



Total length 370 millim. ; tail 67. 



Java, Amboyna. 



