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Eggs and Tadpoles of
Great Basin Spadefoot - Spea intermontana

(Cope, 1883)
 











observation link

 
Great Basin Spadefoot Eggs Great Basin Spadefoot Tadpole Great Basin Spadefoot Tadpole
Two mature eggs attached to a small branch which was found submerged in
shallow water.
Hatchling tadpole Hatchling tadpole
Great Basin Spadefoot Tadpole Great Basin Spadefoot Tadpole Great Basin Spadefoot Tadpole
Tadpole several days after hatching. Older tadpole Mature tadpole with back legs developing
Great Basin Spadefoot Tadpole Great Basin Spadefoot Tadpole Great Basin Spadefoot Tadpole
Mature tadpole
Mature tadpole Mature tadpole with developed back legs
Great Basin Spadefoot Tadpole
Great Basin Spadefoot Tadpole
Great Basin Spadefoot Tadpole
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
Great Basin Spadefoot Metamorph Great Basin Spadefoot Metamorph Great Basin Spadefoot Metamorph
Metamorph, Day 1 Metamorph, Day 2 Metamorph, Day 3
Great Basin Spadefoot Metamorph Great Basin Spadefoot Metamorph Great Basin Spadefoot Metamorph
Metamorph, Day 4 Metamorph, Day 5 Metamorph, Day 6
Great Basin Spadefoot Metamorph Great Basin Spadefoot Metamorph Great Basin Spadefoot
Metamorph, Day 7 Fully-metamorphosed juvenile, Day 15


Recently-transformed juvenile

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