32. HAPLOCERCTJS, 309 



2. Achalinus braconuieri. 



Ophielaps biaconuievi, Saumge, Bull. Soc. Philom. (7) i. 1877, p. 100. 

 Achalinus rufescens inon Boulenn.), Giinth. Arm. & Maa. N.H. (6j 

 iv. 1889, p. 220. 



Distinguished from the preceding by the following characters : — 

 Suture between the iuternasals shorter than that between the 

 prsefrontals ; frontal thrice to thrice and a half as broad as the 

 supraocular ; both anterior temporals in contact with the eye ; two 

 pairs of chin-shields. Scales unicarinate, in 23 or 25 rows. Ven- 

 trals 159-170; subcaudals 48-59. Uniform blackish, ventrals 

 with a narrow whitish edge. 



Total length 550 millim. ; tail 83. 



Southern China. 



a-c, d. (J (V. 161, 168, 159; Ichanfr. A. E. Pratt, Esq. [C.l. 



C. 67, 69, 59) & 2 (V. 170; 

 0. 48). 



3. Achalinus spinalis. 



Achalinus spinalis, Paters, Mon. Berl. Ac. 1869, p. 436, pi. — . fig. 1. 



Suture between the iuternasals as long as that between the prae- 

 frontals ; frontal broader than long, about thrice as broad as the 

 supraocular; temporals 2-|-2, both anterior in contact with the 

 eye ; six upper labials, first very small, fourth and fifth entering 

 the eye, sixth very long ; three pairs of chin-shields, immediately 

 followed by the ventrals. Scales distinctly keeled, in 21 rows. 

 Ventrals 149 ; anal entire ; subcaudals 62. Brown above, with a 

 median black dorsal line ; brownish yellow interiorly, with a black 

 stripe along the tail. 



Total length 360 millim. ; tail 115. 



Japan (?). 



32. HAPLOCERCTJS. 



Haplocercus, Giinth. Cat. Col. Sn. p. 14 (1858), and Rept. Brit.Ind. 



p. 204 (1864) ; Bouleng. Faun. Ind., Kept. p. 290 (1890). 

 Aspidura, part., Jan, Arch. Zool. Anat. Phys. ii. 1862, p. 29. 



Maxillary teeth about 1 0, moderately large, subequal ; posterior 

 mandibular teeth a little shorter than the anterior. Head not 

 distinct from neck; eye rather small, with round pupil; nostril 

 between two small nasals and- the first labial ; no loreal ; a single 

 intern asal. Body cylindrical ; scales keeled, without apical pits, in 

 17 rows ; ventrals rounded. Tail moderate ; subcaudals single. 

 Hypapophyses developed throughout the vertebral column. 



Ceylon. 



1. Haplocercus ceylonensis. 



Haplocercus ceylonensis, Giinth. Cat. p. 15 (1858), and Rept. Brit. 

 Ind. p. 204, pi. xviii. fig. G (1864) ; Bouleng. Faun. Ind., Rept. 

 p. 291 (1890). 



