Of the herpetofauna, eight species are endemic to the Montagne des Français, 28 are regional endemics, 2 are listed as globally threatened in IUCN's 2006 Red List and 14 species are CITES listed.
Rancho Nuevo beach in Tamaulipas is the only nesting site in the world for the Kemp's Ridley sea turtle (Lepidochelys kempii) while other herpetofauna of the ecoregion include Río Grande Chirping Frog (Eleutherodactylus cystignathoides) and Mexican White-lipped Frog (Leptodactylus fragilis).