Columbia subject headings:
Harvard subject headings:
Amphibians--Ecology--Yucatán Peninsula.
Amphibians--Yucatán Peninsula--Geographical distribution.
Reptiles--Ecology--Yucatán Peninsula.
Reptiles--Yucatán Peninsula--Geographical distribution.
Princeton subject headings:
Amphibians--Yucatan Peninsula--Ecology.
Amphibians--Yucatan Peninsula--Geographical distribution.
Reptiles--Yucatan Peninsula--Ecology.
Reptiles--Yucatan Peninsula--Geographical distribution.