Figure 5; A, B Variations in the olive color morph of Erythrolamprus zweifeli from Trinidad (photographs by Michael Patrikeev) C the middle photo shows the “salt and pepper” morph that occurs at higher elevation (photograph by JCM). Both color morphs are included in our molecular sample D E. zweifeli Rancho Grande, Parque Nacional Henri Pittier, Luis A. Rodriguez J. E the Royal Snake, Erythrolamprus reginae from Kaiteur, Guyana (photograph by P Kok).
Figure 2; A comparison of the five members of the Erythrolamprus reginae group. A E. reginae for Guyana (FMNH 30959) B E. zweifeli from Venezuela (FMNH 204477) C E. melanotus from Tobago (UWIZM.2012.42.19) D E. pseudoreginae sp. n. from Tobago (FLMNH 91621) E E. epinephalus from Venezuela (MBLUZ 1502).
Summary[edit] Description: English: A specimen of Erythrolamprus bizona Español: Ejemplar de Erythrolamprus bizona. Date: 8 May 2012. Source: Own work. Author: Sahaquiel9102.
Figure 3; A comparison of the scale arrangements on the crowns and ventral heads of the Erythrolamprus taxa under discussion. A E. pseudoreginae sp. n. from Tobago B E. epinephalus from Venezuela MBLUZ 1501 (dorsal view) and 1500 (ventral view) C, D Salt and pepper morph of E. zweifeli from Trinidad and Venezuela E An olive-brown morph of E. zweifeli Trinidad, FMNH 215827 F A melanistic morph of E. zweifeli from Venezuela EBRG 2745.
Figure 6; Erythrolamprus pseudoreginae. A UWIZM 2016.22.45, holotype B–D FLMNH 91621 from Gilpin Trace, on Tobago’s Main Ridge. B Profile. Of the four specimens examined this was the only one that had nine upper labials (on one side only) C The posterior lateral stripe bordered by a dorsal light stripe D Venter mostly uniform with patches of scattered pigment.