Fig. 19 in Observations on Garter Snakes of the Thamnophis eques Complex in the Lakes of Mexico's Transvolcanic Belt, with Descriptions of New Taxa

Fig. 19. Part of the Lagunilla del Carmen looking southeastward on July 8, 1964. The various pools and puddles were kept filled by the overflow from a large spring on a hillside near El Carmen, Tlaxcala. Domestic stock wandered about freely. Thamnophis eques carmenensis and a frog of the Rana pipiens complex were abundant in many parts of the watery landscape.