442 



AMBLTCEPHALID^. 



(1858), and Sept. Brit. Ind. p. 828 (1864) ; Theoh. Cat. Sept.- 

 Brit. Ind. p. 203 (1876). 

 Leptognathus Isevis, Jan, Elenco, p. 101 (1863), and Icon. Oin. 37, 

 pi. vi. fig-. 4 (1870). 



Eostral a little broader than deep ; internasals small, about one 

 third the length of the praefrontals ; latter entering the eye ; frontal 

 as long as broad or a little broader than long, as long as or a little 

 longer than its distance from the end of the snout, two thirds the 

 length of the parietals ; supraocular very small ; ■ no prseocular ; 

 loreal entering the eye ; one or two postoculars ; temporals 2 + 2 ;. 

 six upper labials, third and fourth, or third, fourth, and fifth 

 entering the eye, sixth very long ; symphysial in contact with a 

 small azygous chin-shield ; third lower labial very large, forming a 

 suture with its fellow ; two pairs of large chin-shields, broader than 

 long. Scales in 15 rows, smooth, vertebrals enlarged. Ventral^ 

 148-176 ; anal entire ; subcaudals 34-69. Brown above, with 

 irregular transverse blackish cross-bands ; lower parts brownish or 

 yellowish, spotted with brown or with transverse brown spots on 

 the sides. 



Total length 545 miUim. ; tail 65. 



Java, Borneo, Natuna Islands, and Malacca. 



a. 5 (V. 167; 0.40). Sarawak. Rajah Brooke [P.] . 



6. c? (V. 156; 0.55). Sarawak. A . Everett, Esq. [0.1, 



c. $ (V. 172 ; 0. 34). Mt. Kina Balu, N. A. Everett, Esq. [0.]. 



Borneo. 



a. S (V. 160; 0. 60). Borneo. Sir E. Belcher. 



e. 2 (V. 176; 0.46). Borneo. 



f. Yg. (V. 148 ; 0. 47). Sirhassen, Gt. Natuna Id. A. Everett, Esq. [0.> 



g. S (V. 163 ; C. 55). Java. Leyden Museum. 



h. c? (V. 170; 0. 69). Java. Hr. Fruhstorfer [C], 



2. Amblycephalus malaccanus. 



Asthenodipsas malaccana, Peters, Man. Berl. Ac. 1864, p. 273,. 



pi. — . fig. 3 ; V. Lidth de Jeude, in M. Weber, Zool. Ergebn. i. 



p. 189, pi. XV. figs. 4-6 (1890). 

 Pareas dorsopictus, Edeling, Nat. Tijdschr. Nederl. Ind. xxxi. 1870,. 



p. 383. 

 Amblycephalus malaccanus, Bimhng. Proc. Zool. Sac. 1892, p. 607. 



Eostral a little broader than deep ; internasals not more than half 

 as long as the praefrontals ; latter entering the eye ; frontal as long 

 as broad or a little broader than long, as long as or a little longer 

 than its distance from the end of the snout, much shorter than the 

 parietals ; supraocular small ; no prseocular ; loreal short, entering 

 the eye ; two postoculars ; temporals 2-1-2, the two upper sometimes 

 fused; seven upper labials, third and fourth entering the eye,, 

 seventh large ; symphysial in contact with a small azygous shield ; 

 second or third lower labial very large, usually in contact with it& 

 feUow ; two pairs of large chin-shields, broader than long. Scales 

 smooth, in 15 rows ; three median rows a little enlarged. Ventrals- 



