Order ARTIODACTYLA
- Family Tayassuidae
- Tayassu tajacu angulatus (Cope) [465]
- Family Cervidae
- Odocoileus hemionus crooki (Mearns) [465]
- Odocoileus virginianus miquihuanensis Goldman and Kellogg [466]
- Odocoileus virginianus texanus (Mearns) [466]
- Odocoileus virginianus veraecrucis Goldman and Kellogg [466]
- Mazama americana temama (Kerr) [466]
- Family Antilocapridae
- Antilocapra americana mexicana Merriam [467]
ACCOUNTS OF SPECIES AND SUBSPECIES
Didelphis marsupialis
Opossum
The opossum occurs throughout Tamaulipas but is commonest in the south, especially in the areas of tropical forest and along water courses. Most of the specimens examined were caught in steel traps baited with remains of small animals (mostly mammals and birds, but one trap was baited with the head of a black bass). At Villa Mainero five individuals were caught in one night in five of seven traps scented with spilogale musk. These traps were set in runways along a thick thorn-brush fence, which separated a cornfield from thorn-brush desert. Along the Río Purificación 36 kilometers north and 10 kilometers west of Victoria an opossum was eaten in a trap by a small carnivore, probably a felid judging from tracks around the trap.
A female with 14 pouch young was taken in June in the Sierra de Tamaulipas and weighed 1350 grams; a March-taken female with nine small young in her pouch, from Soto la Marina, weighed 1800 grams. A male from the Sierra de Tamaulipas also weighed 1800 grams.
Didelphis marsupialis californica Bennett
1833. Didelphis Californica Bennett, Proc. Zool. Soc. London, p. 40, May 17, type locality restricted to Sonora by Hershkovitz (infra).