Posted by:
Colchicine
at Mon May 26 19:56:06 2003 [ Email Message ] [ Show All Posts by Colchicine ]
I am only familiar with the frogs to Southeast Virginia, but I should be able to help.
There are only two species of frogs that would have large tadpoles this time of year, bullfrogs and green frogs, both of the Rana genus. Your first one appears to be a green frog because of the irregular spots on the tail. The bullfrogs would have much smaller and well-defined spots. Both of the species breed in permanent bodies of water like you mentioned.
The second one is probably Psuedacris because of the size and of the lateral eyes. It could be a spring peeper but I do not know what else is native to your area.
The third one is most likely Bufo, they tend to be small and very dark.
Most tadpoles require a microscope of some type even for identification down to a family. Here I am making generalizations that I know from my area. Conveniently, these are also the types of tadpoles I am catching now.
By the way, when you want to specify the length you have measured not including the tail, it is called the snout to vent length or SVL. It is a standard.
Don't forget to try your best with looking at the tadpole key. Let me know if this helps. click here for the link...
----- *Humans aren't the only species on earth... we just act like it.
".the oldest task in human history: to live on a piece of land without
spoiling it."
Aldo Leopold (1938)
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