Mammalia:  Mammals
The class Mammalia consists of 29 orders, 153 families, about 1,200 genera and more than 5,000 species. They are distrubuted on every continent. About 442 species can be found in North America north of Mexico. They range in size from the 3 centimeter (1.2 in) Kitti's Hog-nosed Bat Craseonycteris thonglongyai to the 33 meter (110 ft) Blue Whale Balaenoptera musculus.


Order Primates

Cebidae: New World Monkeys 12 genera, 44 species

• Geoffroy's Spider Monkey (Ateles geoffroyi) at Tortuguero National Park, Costa Rica, April 2009.
• White-headed Capuchin (Cebus capucinus) Near Puerto Jimenez, Puntarenas, Costa Rica, April 2009.


Cercopithecidae: Old World Monkeys 19 genera, 94 species

• Barbary Macaque (Macaca sylvanus) on the island of Gibralter, April 1981.
• Northern Pig-tailed Macaque (Macaca leonina) at Khao Yai National Park, Thailand, January 2009.

Order Xenarthra

Bradypodidae: Sloths 2 genera, 6 species

• Brown-throated Sloth (Bradypus variegatus) at Santa Elena, Puntarenas, Coasta Rica, April 2009.
  
  Bradypodidae: Armadillos 8 genera, 20 species
  
• Nine-banded Armadillo (Dasypus novemcinctus) at Aransas National Wildlife Refuge, Texas, March 2009.
  
  
  

Order Lagomorpha

Leporidae: Hares and Rabbits 11 genera, 47 species

• Black-tailed Jackrabbit (Lepus californicus) at Rancho Hidalgo, near Animas, New Mexico, June 2010.
• Desert Cottontail (Sylvilagus audobonii) at the San Pedro House, near Sierra Vista, Cohise County, Arizona, July 2010.
• Mountain Cottontail (Sylvilagus nuttallii) at Luna Lake, near Alpine, Apache County, Arizona, June 2010.
  
  
  

Order Rodentia

Sciuridae: Squirrels and their Allies 50 genera, 267 species

• Black Giant Squirrel (Ratufa bicolor) at Khao Yai National Park, Thailand, January 2009.
• Eastern Fox Squirrel (Sciurus niger) at Lost Maples State Park, Texas, May 2009.
• Arizona Gray Squirrel (Sciurus arizonensis) at Ramsey Canyon, near Sierra Vista, Cochise County, Arizona, July 2010.
• Antelope Ground Squirrel (Ammospermophilus harrisi) near Portal, Cochise County, Arizona, December 2008.
• Rock Squirrel (Spermophilus variegatus) at Cave Creek Ranch, Chiricahua Mountains, Cochise County, Arizona, September 2008.
• Round-tailed Ground Squirrel (Spermophilus tereticaudus) at Sabino Canyon, Pima County, Arizona, May 2010.
• Cliff Chipmunk (Tamais dorsalis) near Portal, Cochise County, Arizona, September 2008.
• Yellow-bellied Marmot (Marmota flaviventris) at Capitol Reef National Park, Wayne County, Utah, May 2010.
  
  Dasypractidae: Agouti 1 genera, 11 species
  
• Central American Agouti (Dasyprocta punctata) at the Wilson Botanical Garden, near San Vito, Puntarenas, Costa Rica, April 2009.
  
  
  

Order Carnivora

Canidae: Dogs, Wolves, Foxes, Jackals 16 genera, 36 species

• Coyote (Canis latrans) at Bosque del Apache National Wildlife Refuge, Socorro County, New Mexico, November 2008.
  
  Felidae: Cats 15 genera, 41 species
  
• Bobcat (Lynx rufus) at Cave Creek Ranch, Portal, Cochise County, Arizona, November 2008.
  
  Procyonidae: Racoons, etc 7 genera, 19 species
  
• Racoon (Procyon lotor) at Cave Creek Ranch, Portal, Cochise County, Arizona, October 2008.
• Ring-tailed Cat (Bassariscus astutus) at Cave Creek Ranch, Portal, Cochise County, Arizona, November 2006.
  
  Mustelidae: Weasels, Otters, Skunks, Badgers 23 genera, 65 species
  
• Long-tailed Weasel (Mustela frenata) at Luna Lake, near Alpine, Apache County, Arizona, June 2010.
• Striped Skunk (Mephitis mephitis) at Cave Creek Ranch, Portal, Cochise County, Arizona, December 2008.
  
  
  

Order Pinnipedia

Otaridae: Eared Seals, Sea Lions 7 genera, 14 species

• Antarctic Fur Seal (Arctocephalus gazella) on Bird Island, South Georgia, southern Atlantic Ocean, April 1985.
  
  Phocidae: Seals, Sea Lions 10 genera, 19 species
  
• Southern Elephant Seal (Mirounga leonina) at Grytviken, South Georgia, southern Atlantic Ocean, April 1985.
• California Sea Lions (Zalophus californianus) in the San Diego harbor, California, May 2010.
  
  
  

Order Artiodactyla

Tayassuidae: Peccaries, Javelinas 2 genera, 3 species

• Collared Peccary (Pecari tajacu) at Cave Creek Ranch, Chiricahua Mountains, Cochise County, Arizona, December 2006.
  
  Cervidae: Deer, etc 17 genera, 45 species
  
• Elk (Cervus canadensis) at the Prairie Creek Redwoods State Park, Humboldt County, California.
• Mule Deer (Odocoileus hemionus) at Bosque del Apache National Wildlife Refuge, Socorro County, New Mexico, November 2008.
• White-tailed Deer (Odocoileus virginianus) at Cave Creek Ranch, Chiricahua Mountains, Cochise County, Arizona, October 2008.
• Indian Muntjac (Muntiacus muntjak) at Khao Yai National Park, Thailand, January 2009.
  
  Bovidae: Cattle, Sheep, Goats, Antelopes, etc 48 genera, 139 species
  
• Pronghorn (Antilocapra americana) near Green's Peak, Apache County, Arizona, June 2010.

Last updated 22 July 2010

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