Rocky Mountain Amphibian Project

A WYOMING BIODIVERSITY CITIZEN SCIENCE INITIATIVE PROJECT


Northern Leopard Frog (Lithobates pipiens)

The Northern Leopard Frog
Other names: Rana pipiens

IDENTIFICATIONNorthernLeopardFrog_Bateson-300w.jpg

  • Size: 1 inch (metamorph) to ~4.5 inches (adult)
  • Dorsal color: bright green, olive or brown
  • Large, dark oval spots with pale edging
  • Skin is relatively smooth
  • Ventral color: creamy white with no red present (on healthy frogs)
  • Prominent pale dorsolateral folds from the eye down the length of the body
  • Obvious typanum (ear)
  • Mp3 of call (courtesy of Gary Nafis, californiaherps.com; contact Gary for permission to post on other websites)

8a379b7ae1991e156988c1e08e0ae375_f245.jpgfcd333837f2c85250a95cf1a9b48818d_f246.jpg 

Top right photo by Bateson; Photos above by Greene

 

EGGS & TADPOLES

  • Eggs in round closeter ~3 to 5 inches in diameter (see right)
  • Eggs either on the bottom of or attached to vegetation
  • Tadpole eyes are medial and anal vent is on the side

 


0c6c2790eec98f75a58a05c3cc533639_f243.jpgNorthernLeopardFrog_tadpole_Snoberger-400px.jpg

Egg photo by Wyoming Natural Diversity Database                                                       Tadpole photo by Charlotte Snoberger

 

BREEDING HABITAT

Shallow water in marshes and semi-permanent or permanent ponds (beaver ponds, stock ponds, etc.) or slow moving backwater areas along rivers or streams.

AmphibianHabitat_Zars-700px.jpg

 

NATIVE RANGE

NorthernLeopardFrog.jpg

Map by Wyoming Natural Diversity Database