The Yucatan Brown Brocket (Mazama pandora) is a small species of deer

Deer

Deer are the ruminant mammals forming the family Cervidae. Species in the Cervidae family include white-tailed deer, elk, moose, red deer, reindeer, fallow deer, roe deer and chital. Male deer of all species and female reindeer grow and shed new antlers each year...

 native to the Yucatán Peninsula

Yucatán Peninsula

The Yucatán Peninsula, in southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico, with the northern coastline on the Yucatán Channel...

 of Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

, Belize

Belize

Belize is a constitutional monarchy and the northernmost country in Central America. Belize has a diverse society, comprising many cultures and languages. Even though Kriol and Spanish are spoken among the population, Belize is the only country in Central America where English is the official...

 and Guatemala

Guatemala

Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...

. While it is found in humid tropical forest like most other brocket deer

Brocket Deer

Brocket deer are the species of deer in the genus Mazama. They are medium to small in size, and are found in the Yucatán Peninsula, Central and South America, and the island of Trinidad. Most species are primarily found in forests. They are superficially similar to the African duikers and the Asian...

, the Yucatan Brown Brocket also ranges across arid, relatively open habitats. It has been treated as a disjunct

Disjunct distribution

In biology, a taxon with a disjunct distribution is one that has two or more groups that are related but widely separated from each other geographically...

 subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 of the Gray Brocket

Gray Brocket

The Gray Brocket , also known as the brown brocket, is a species of brocket deer from northern Argentina, Bolivia, eastern and southern Brazil, Paraguay and Uruguay. It formerly included the Amazonian Brown Brocket and sometimes also the Yucatan Brown Brocket as subspecies...

 or a subspecies of the Red Brocket

Red Brocket

The Red Brocket , is a species of brocket deer from forests in South America, ranging from northern Argentina to Colombia and the Guianas...

 (Mazama americana).

Among others, the Yucatan Brown Brocket differs from both the Red Brocket and the Gray Brocket in the shape and measurements of the skull and antlers. It also differs from the Central American Red Brocket

Central American red brocket

The Central American red brocket, Mazama temama, is a species of brocket deer ranging from southern Mexico, through Central America, to northwestern Colombia. It was formerly treated as a subspecies of the red brocket from South America, but its karyotype has 2n = 50, while the latter's was...

, which is locally sympatric with the Yucatan Brown Brocket, in its gray-brown, rather than overall reddish, color.