Scale rows 15 at midbody 3 
Ventrals more than 170; about 10 dark crossbars... 
ornatus 
Ventrals less than 160; more than 30 crossbars... 
erythrorachis 
Scale rows at midbody 17 5 
More than 17 scale rows at midbody 6 
Nape and rear of head with wide V-shaped, dark mark; 
ventrals with 2 rows of square, dark brown spots... 
chinensis 
Without dark V on nape; belly unmarked swinhonis 
Scale rows at midbody 21 cyclurus 
Scale rows at midbody 19 7 
Anal single 8 
Anal paired; vertebral area with about 50 black-edged, brown 
crossbars bellus 
Upper labials 7; trunk and tail with large brown crossbars, 
22-24 + 4-8 albocinctus 
Upper labials 8; scales edged with black forming a network.. 
formosanus 
Opheodrys 
Anal single; back uniform green doriae 
Anal paired 2 
Back uniform green major 
Rear of body with short, yellow crossbars multicinctus 
Opisthotropis 
Scale rows at midbody 17 2 
Scale rows at midbody 19 5 
Black above, belly yellow maxwelli 
Not as above 3 
Upper labials 7-9 4 
Upper labials 10-11 lateralis 
Usually without preocular,: rarely: | or 2;)' loreal: meeting 
eye latouchi 
Usually 2-3 preoculars, rarely 1; loreal not touching eye.. 
andersoni 
Scale rows at end of body 17; body with black rings... 
balteata 
Scale rows 19 at end of body; body not ringed... 
kuantunensis 
Plagiopholis 
Loreal present, temporals 1 + 2 nuchalis 
No loreal 2 
Upper labials 5; temporals 1 + 1 blakewayi 
Upper labials 6; temporals 2 + 2 styani 
Pseudoxenodon 
Body and tail dorsally with black or blackish crossbars... 
bambusicola 
No blackish crossbars 2 
Black-edged gray stripes on top of tail and rear of body... 
nothus 
10 
