FIGURE 22 in Illustrated Key to the Snakes of the Philippines

FIGURE 22. Dorsal view of head of (A) Acutotyphlops banaorum (FMNH 262249; a redrafting by EH of original image in Wallach et al. 2007), (B) Malayotyphlops ruber (SMF 16616; a redrafting by EH of original image in Wynn et al. 2016), (C) Ramphotyphlops suluensis (PBS 2001; a redrafting by EH of original image in Taylor 1918). Prefrontal scale (green), rostral scale (purplish-gray). Fig. A reproduced and modified with permission of V. Wallach and Journal of Herpetology. Fig. B reproduced and modified with permission of A. Wynn and Journal of Herpetology.