64, DENDROPHIS. 77 
about as large as the parietal shields, all except the outer row 
keeled; the keels on the two median rows stronger. Ventrals 
157-162; 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. 
Ahetulla, part., Gray, Ann. Phil. x. 1825, p. 208. 
Leptophis, part., Bell, Zool. Journ. 11. 1825, p. 828; Jan, Elenco sist. 
Ofid. p. 84 (1863). 
Dendrophis, Bove, Isis, 1827, p. 520; Bouleng. Faun. Ind., Rept. 
p- 337 (1890). : 
Dendrophis, part., Wagl. Syst. Amph. p. 182 (1850); Schleg. Phys. 
Serp. ii. p. 220 (1837); Dum. § Libr. Erp. Gén. vii. p. 193 (1854) ; 
Giinth. Cat. Col. Sn. p. 148 (1858) ; Jan, 1. c. p. 85; Giinth. Rept. 
Brit. Ind. p. 296 (1864). 
Maxillary teeth 20 to 33, the 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. 
Maxillary and mandible of Dendrophis 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. pictus, p. 78. 
Two loreals; ventrals 154-171 ...... 2. bifrenalis, p. 80. 
B. Scales in 13 rows. 
Usually two superposed, anterior tem- « . 
porals; ventrals 176-211 .........% 3. calligaster, p. 80. 
Usually a single, much elongate anterior 
temporal; ventrals 191-220; nodark 
streak on the’side of the head ...... 4. punctulatus, p. 82. 
