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A Guide to the Amphibians
and Reptiles of California





Eggs and Tadpoles of
Sierran Treefrog - Pseudacris sierra

(Jameson, Mackey, and Richmond, 1966)

(See Alternate Names)
 










observation link

 

Eggs
Sierran Treefrog Eggs Sierran Treefrog Eggs Sierran Treefrog Eggs
Eggs, Butte County Eggs, Contra Costa County
Sierran Treefrog Eggs Sierran Treefrog Eggs Sierran Treefrog Eggs
Eggs, Contra Costa County Eggs, Contra Costa County Eggs, Contra Costa County
Sierran Treefrog Eggs Sierran Treefrog Eggs Sierran Treefrog Eggs
Eggs, San Mateo County Mature eggs, ready to hatch,
Alpine County
Sierran Treefrog Eggs Sierran Treefrog Eggs Sierran Treefrog Eggs
Eggs underwater, Fresno County. Recently-laid eggs, Contra Costa County These are unlaid eggs which have spilled out of the open abdomen of a dead Sierran Treefrog that was found at the edge of a pond in Alameda County. If you don't want to see a picture of the dead frog, don't click on the thumbnail to look at the large image.
california toad eggs california toad eggs  
There are three types of frog eggs in this Contra Costa County pond in mid March:
the large mass on top is from a California Red-legged Frog,
the long strings of eggs are from  the California Toad,
and the small balls of eggs are from  the Sierran Treefrog.

© Mark Gary
There are four types of amphibian eggs in this Alameda County pond in late Fegruary:
On the top left near the surface is a Sierran Treefrog egg mass.
To the right and slightly below that is a California Newt egg mass.
Below these small egg masses are several recently-hatched California Toad egg strings (no longer eggs, really.)
And the large egg mass in the bottom right corner of the picture is from a
California Red-legged Frog.

© Mark Gary
 
     
Tadpoles
Sierran Treefrog Tadpole Sierran Treefrog Tadpole Sierran Treefrog Tadpoles
Tadpole, Contra Costa County Tadpole, Contra Costa County Recently hatched tadpoles at shallow edge of small pond, Contra Costa County
Sierran Treefrog Tadpole    
Tadpole, Contra Costa County    
     
Comparisons With Larvae and Tadpoles of Sympatric Species
Sierran Treefrog Tadpole Sierran Treefrog Tadpole rana boylii tadpole
CA Red-legged Frog tadpole (Top)
Treefrog tadpole (Pseudacris) (Bottom)
CA Red-legged Frog tadpole (Right)
Treefrog tadpole (Pseudacris) (Left)
Foothill Yellow-legged Frogtadpole (Left)
Treefrog Tadpole (Pseudacris) (Right)
The eyes of Treefrog tadpoles (Pseudacris) extend to the margins of the head when seen from above, while the eyes of tapoles of the sympatric California Red-legged Frog are inset from the margins of the head, as you can see in the above photos from  Alameda County. © Joseph E. DiDonato.
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.
tadpole salamander larva comparison tadpole salamander larva comparison Cascades Frog Tadpoles
Comparison of young sympatric aquatic amphibian larvae:
Treefrog Tadpole (Pseudacris) (Bottom)
Long-toed Salamander larvae (Ambystoma macrodactylum) (Top)
Cascade Frog tadpole - (Left)
Eyes are on top of the head.

Treefrog tadpole (Pseudacris) (Right)
Eyes are on the sides of the head.
  Sierran Treefrog Tadpole  
  Comparison of Treefrog Tadpole (Pseudacris regilla group) (Top)
with Toad Tadpole
(Anaxyrus boreas) (Bottom)
(Click on picture for a better view)
 
     
Short Video
  Sierran Treefrog Tadpole  
  Sierran Treefrog tadpoles feed in a pond and a puddle in a creekbed on a sunny spring afternoon in Contra Costa County.  


Go to the Northern Pacific Treefrog Tadpoles page to see more pictures of what the tadpoles of this frog look like.







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