Tropidolaemus

Weinell, Jeffrey L., Hooper, Errol, Leviton, Alan E. & Brown, Rafe M., 2019, Illustrated Key to the Snakes of the Philippines, Proceedings of the California Academy of Sciences 66 (1), pp. 1-49 : 34-35

Tropidolaemus

Key to Philippine species.

1a. Longitudinal rows of dorsal body scales at midbody 21–23 (males), 21–29 (females); dorsal scales on head 9–16 along a line passing between the supraocular scales ( Fig. 46A ); third supralabial scale usually separated from subocular scale by one or two scales; color variable, shades of green, blue or green, and blue in females, and green in males, but blue in some Negros Island populations; crossbands on body blue and white, red and white, or blue, red and white; color of postocular stripe variable (females), white or red (males), or red (juveniles).................................................................... Tropidolaemus subannulatus

1b. Longitudinal rows of dorsal body scales at midbody 18–19 (males and females); dorsal scales on head 6–8 along a line between the supraocular scales ( Fig. 46B ); third supralabial scale usually in contact with subocular scale (rarely separated by one scale); in life: background body color turquoise-green (males) or green (females); postocular stripe usually black (rarely white)...................................................... Tropidolaemus philippensis

Figures

FIGURE 46. Dorsal view of head of (A) Tropidolaemus subannulatus (KU 324585), (B) Tropidolaemus philippensis (KU 334672). Dorsal scales of head along line between supraocular scales (reddish brown).