 This leporid is one of the largest jackrabbits and has large ears and legs.Adults weigh about 3500 to 4000 grams.The Tehuantepec jackrabbit is a rare endemic of Oaxaca, México, and is only found along savannas and grassy dunes on the shores of a salt water lagoon connected to the Gulf of Tehuantepec in the Istmo de Tehuantepec Region.