Eleutherodactylus rugulosus rugulosus (Cope)
Chinajá, 2; 15 km. NW of Chinajá, 4.
These frogs were found on the forest floor by day. With the exception of one female having a snout-vent length of 69.5 mm., all are juveniles. The apparent rarity of this species at Chinajá may be due to the absence of rocky streams, a favorite habitat of this frog. The local name for this frog is sapito, meaning little toad.
Leptodactylus labialis (Cope)
Toocog, 1.
One juvenile having a snout-vent length of 16.4 mm. was found at night beside a pond in the forest. The scarcity of the species of Leptodactylus in the southern part of El Petén probably is due to the lack of permanent marshy ponds.
Leptodactylus melanonotus (Hallowell)
Sayaxché, 1.
One individual was found beneath a rock beside a stream in the forest. The local name is ranita, meaning little frog.
Syrrhophus leprus Cope