This Province includes the southern part of the Coastal Plain
physiographic region, south of the Sierra de Tamaulipas and Soto la
Marina. But the exact line between this Province and the Tamaulipan
Province to the north is difficult to draw. The northern boundary of
the Veracruzian Province is the line between the Nearctic and
Neotropical regions in eastern Mexico.
Vegetation of most of the Veracruzian Biotic Province is Tropical
Deciduous Forest. This Forest is made up of _Tabebuia_, _Ipomea_,
_Bombax_, and _Conzattia_, along with some _Ceiba_, _Bursera_, and
_Psidium_.
The mammalia fauna of the Veracruzian Biotic Province is
tropical in nature. This is especially true of the bats.
Representatives of the tropical genera _Micronycteris_,
_Sturnira_, _Artibeus_, _Enchistenes_, _Desmodus_,
_Diphylla_, and _Molossus_ have their northern
distributional limits in this Province. The non-flying
mammals characteristic of the Province in Tamaulipas are:
_Philander opossum pallidus_; _Marmosa mexicana_; _Ateles
geoffroyi velerosus_; _Geomys tropicalis_; _Oryzomys
melanotis rostratus_; _O. alfaroi huastecae_; _O. fulvescens
engracie_ (endemic to this Province in Tamaulipas); _O. f.
fulvescens_; _Reithrodontomys mexicanus_; _Peromyscus
orchraventer_ (endemic); _Neotoma micropus angustapalata_;
_Eira barbara senex_; _Felis wiedii oaxacensis_; and _Mazama
americana temama_.