Fig. 8 in Observations on Garter Snakes of the Thamnophis eques Complex in the Lakes of Mexico's Transvolcanic Belt, with Descriptions of New Taxa

Fig. 8. Dorsal pattern of Thamnophis eques insperatus (AMNH 87550), 600+ mm in original length, from near Zacapu, Michoacán, found dead on the road and not in the best of condition, August 22, 1961. Drawing represents a section of skin from anterior third of body as though belly had been slit down its center, the skin loosened, and then stretched out flat. Head end toward top. Delineated by W.H. Brandenburg. (Unfortunately, this is the only available specimen from the Lago de Zacapu and its huge plexus of irrigation canals.)