CaliforniaHerps.com

A Guide to the Amphibians
and Reptiles of California





Eggs, Tadpoles, and Metamorphs of
Northern Pacific Treefrog - Pseudacris regilla

(Baird and Girard, 1852)

(See Alternate Names)
 










observation link

 

Eggs
Northern Pacific Treefrog eggs Northern Pacific Treefrog eggs    
Eggs, Lewis County, Washington Eggs, Lewis County, Washington    
       
Tadpoles
Northern Pacific Treefrog Tadpole Northern Pacific Treefrog Tadpole Northern Pacific Treefrog Tadpole Northern Pacific Treefrog Tadpole
Mature tadpole, with rear legs developing Young tadpole Young tadpole Mature tadpole with four legs, and developing pattern
Northern Pacific Treefrog Tadpole Northern Pacific Treefrog Tadpole Northern Pacific Treefrog Tadpole Northern Pacific Treefrog Tadpole
Young tadpole Young tadpole Mature tadpole, front legs about to emerge, eye stripe visible
 
Comparisons With Larvae and Tadpoles of Sympatric Species
Northern Pacific Treefrog Tadpole red-legged frog tadoles tadpole salamander larva comparison tadpole salamander larva comparison
Viewed from above, the eyes of a Northern Pacific Treefrog tadpole (Pseudacris regilla) extend to the outline of the head, as you can see in the picture on the left.

The eyes of the tadpoles of sympatric Rana aurora - Northern Red-legged Frog are inset from the margins of the head, as you can see in the picture on the right.
Comparison of young sympatric aquatic amphibian larvae:
Treefrog Tadpole (Pseudacris) (Bottom)
Long-toed Salamander larvae (Ambystoma macrodactylum) (Top)
rana boylii tadpole Cascades Frog Tadpoles Sierran Treefrog Tadpole  
Foothill Yellow-legged Frogtadpole (Left)
Treefrog Tadpole (Pseudacris)
(Right)

From above, the eyes of the Foothill Yellow-legged Frog are located on top of the head and the eyes of Treefrog tadpoles (Pseudacris) are located at the sides of the head.
Cascade Frog tadpole - (Left)
Eyes are on top of the head.

Treefrog tadpole (Pseudacris) (Right)
Eyes are on the sides of the head.
Comparison of Treefrog Tadpole (Pseudacris regilla group) (Top)
with Toad Tadpole
(Anaxyrus boreas) (Bottom)
(Click on picture for a better view)
 
   
Below are pictures of a captive Northern Pacific Treefrog just transformed from a tadpole, as it continues to transform into a frog.
Northern Pacific Treefrog Northern Pacific Treefrog Northern Pacific Treefrog Northern Pacific Treefrog
Metamorph on first day of
emergence onto land
Metamorph, second day Metamorph, third day Metamorph, fourth day
Northern Pacific Treefrog Northern Pacific Treefrog Northern Pacific Treefrog Northern Pacific Treefrog
Metamorph, fifth day (very small bit of tail remaining)



Metamorph, sixth day Metamorph, day seven



Go to the Sierra Treefrog Tadpoles page to see more pictures of what the eggs of the Northern Pacific Treefrog look like






Home Site Map About Us Identification Lists Maps Photos More Lists CA Snakes CA Lizards CA Turtles CA Salamanders CA Frogs
Contact Us Usage Resources Rattlesnakes Sounds Videos FieldHerping Yard Herps Behavior Herp Fun CA Regulations
Beyond CA All Herps


Return to the Top

 © 2000 -