Paso Subín, 1.
This specimen was taken from the thatched roof of a house at the edge of the forest and contained the remains of a small mammal. The local name is nahuyaca.
HYPOTHETICAL LIST OF SPECIES
Listed below are thirteen species that have not been found in southern El Petén but that probably occur there.
Dermophis mexicanus mexicanus (Duméril and Bibron).—Natives at Chinajá know caecilians, which they call dos cabezas. This species has been taken in Tabasco and northern Chiapas. Its occurrence in southern El Petén is expected. Less likely, the caecilian known to the natives at Chinajá is Gymnopis oligozona, which is known from Finca Volcán on the southern slopes of the valley of the Río Cahabón in Alta Verapaz.
Gastrophryne elegans (Boulenger).—This small fossorial frog is known from Piedras Negras (Taylor and Smith, 1945:604), 12 miles east of Yaxha (Stuart, 1934:7), and Tikal (Stuart, 1958:18), all in northern and central El Petén. Two specimens in the collection of the University of Kansas are from 28 kilometers northeast of Campur, Alta Verapaz. Probably the species ranges throughout the forested lowlands of northern Alta Verapaz and El Petén.
Mabuya brachypoda Taylor.—The absence of this widespread lizard in our collections cannot be explained. Probably it occurs in southern El Petén, for it is known in northern and central El Petén and in Alta Verapaz.
Dendrophidion vinitor Smith.—This snake is known from Piedras Negras, El Petén and from various localities in Alta Verapaz; it is an inhabitant of humid forest and should occur in southern El Petén.