64. DESDROPHIS. 77 



about as largo as the parietal shields, all except the outer row 

 keeled: tin- keels on the two median rows stronger. Ventrals 

 1~>7-1'!2; anal divided; subcaudals 118-135. Black, the throat 

 and anterior part of the belly yellow. 



Total length 2200 millim. ; tail 500. 



Costa Rica. 



64. DENDROPHIS. 



Ahjetulla, part., Gray, Ann. Phil. x. 1825, p. 208. 



Leptophis, part., Bell, Zool. Journ. ii. 1825, p. 328; Jan, Elenco sist. 



Ofid. p. 84 (1863). 

 Dendrophis, Boie, Isis, 1827, p. 620 ; Boideng. Faun. Ind., Sept. 



p. -'.37 (1890). 

 Dendrophis, part., Wagl. Syst. Amph. p. 182 (1830) ; Schleg. Phys. 



Serp. ii. p. 220 (1837) ; Dum. 8f Bibr. Erp. G6n. vii. p. 193 (1854) ; 



Giinth. Cat. Col. Sn. p. 148 (1858) ; Jan, I. c. p. 85 ; Giinth. Rent. 



Brit. Ind. p. 296 (1864). 



Maxillary teeth 20 to 33, tho posterior more or less enlarged, 

 stouter if not longer than the rest; anterior mandibular teeth 

 longest. Head distinct from neck, more or less elongate ; eye 

 large, with round pupil. Body elongate, more or less compressed ; 

 scales smooth, in 13 or 15 rows, narrow, disposed obliquely, with 

 apical pits, those of the vertebral row more or less enlarged ; 

 ventrals with a suture-like lateral keel and a notch on each side, 

 corresponding to the keel. Tail long; subcaudals in two rows, 

 keeled and notched like the ventrals. 



South-eastern Asia and Australia. 



Fig. 6. 



Maxillary and mandible of Dendropfa pictus. 



Synopsis of the Species. 



I. Maxillary teeth 20 to 26 ; eye not longer than its distance from 

 the nostril. 



A. Scales in 15 rows. 



A single loreal ; ventrals 165-190 .... 1. ftictus, p. 78. 

 Two loreals; ventrals 154-171 2. bifrenalu, p. 80. 



B. Scales in 13 rows. 



Usually two superposed anterior tem- 

 porals; ventrals 17*i-211 3. calligastsr, p. 80. 



Usually a single, much elongate anterior 

 temporal; ventrals 11*1 -220 ; no dark 

 streak on the side of the head 4. jntnetulutus, p. -i'. 



