California Reptiles & Amphibians




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Spea intermontana - Great Basin Spadefoot, Pg. 2 - Eggs and Tadpoles






Page 1 - Frogs and habitats

Great Basin Spadefoot Sounds

Northwest Great Basin Spadefoots

Two mature eggs attached to a stick which was found submerged in shallow water.
Hatchling tadpole Hatchling tadpole
Tadpole several days after hatching.
Older tadpole
Mature tadpole with back legs developing
Mature tadpole



Mature tadpole Mature tadpole with developed back legs
Transforming tadpole with tail decreasing in length and front legs developed (and visible ) but not yet emerged.
The front legs emerged one day later and the spadefoot moved to land (first picture of the following series).

The following series of pictures show a recently-metamorphosed spadefoot
(one of the tadpoles shown above) as it absorbs its tail over a period of 7 consecutive days


Metamorph, Day 1
Metamorph, Day 2
Metamorph, Day 3
Metamorph, Day 4
Metamorph, Day 5
Metamorph, Day 6
 
Metamorph, Day 7
Fully-metamorphosed juvenile, Day 15


 

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