14. 
Back olive-brown with two light yellow stripes edged with 
black extending to tail; scales strongly keeled 
bitaeniata 
Back olive-brown with light spots forming two less distinct 
lines; scales weakly keeled, outer smooth johannis 
Boiga 
Temporals normally 1-3 in first row; anal plate single... 
multomaculata 
Temporals small; anal plate divided kraepelini 
Calamaria 
No preocular yunnanensis 
Preocular present 2 
Rostral scale at least half length of prefrontal suture; tip 
of tail pointed pavimentata 
Rostral scale one-third length of prefrontal suture; tip of 
tail blunt septentrionalis 
Coluber 
Scale rows 17-17-15; a black-edged vertebral stripe from 
head to tail spinalis 
Scale rows 21-21-15; diamond-shaped markings on vertebral 
area raverpgieri 
Dendrophis 
Scale rows 13-13-11 (or 9) gorei 
Scale rows 15-15-11 (or 9) 2 
Upper labials 9 (rarely 8), 4-6 border eye; ventrals 167- 
200, subcaudals 127-164 pictus 
Upper labials 7 or 8, only one bordering eye; ventrals 153- 
175, subcaudals 85-105 subocularis 
Dinodon 
Scale rows at midbody 19; loreal not bordering eye; light 
red, narrow crossbars 28-35 + 9-13 rosozonatum 
Scale rows at midbody 17, rarely 19 2 
Scales smooth, rarely a few rows with weak keels; loreal 
usually bordering eye; more than 60 light red, narrow 
crossbars rufozonatum 
A few scale rows with weak keels; loreal usually not 
bordering eye; many yellowish white crossbars... 
septentrionalis 
Elaphe 
Most of body green, without dark markings 2 
Body not green, with markings of some sort 3 
Loreal present prasina 
Loreal absent frenata 
Markings on head consisting of black lines radiating from 
eye; a narrow black occipital crossbar radiata 
Markings on head, if present, not as above 4 
No stripes or crossbars on top or side of head 5 
Top or side of head with stripes or crossbars 8 
Sutures of dorsal head plates black carinata 
