Volume 17, No. 13, pp. 559-578, 3 pls. 17-19 Date, April 5, 1968...

Volume 17, No. 13, pp. 559-578, 3 pls. 17-19 Published April 5, 1968 University of Kansas Lawrence, Kansas...

Biological exploration of México and Central America has revealed the presence of a diverse fauna, elements of which have undergone speciation in separate areas within the relatively small region. Some genera of amphibians, especially Eleutherodactylus and Hyla , are represented by many species having small geographic ranges in México and Central America. Most of the species of Hyla inhabiting the lowlands have been known to science for many years, and most of the novelties today are found in th