Lithobates grylio
—
Pig Frog
The genus Lithobates was split from Rana by Frost et al in 2006. This has been a controversial change ever since, and many authorities continue to use Rana.
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Dr. Peter May and I saw many of these large frogs just off the dikes in Emeralda Marsh. Most of them appeared like the first picture here -- just a pair of frog eyes and a frog snout sticking up out of the water plants. Pig frogs, true to their name, make a wonderful loud grunting noise.
For more about the wildlife of Emeralda Marsh, check out Dr. May's Emeralda Journal.
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These large frogs are no doubt plentiful along the amazing Corkscrew Swamp boardwalk, but they didn't grow to be large by being obvious. I was lucky to spot this one hiding in the foliage.
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This was the first really good look at these frogs that I've gotten. One of the roads in the park crosses over a small stream right at a spot favored by the local breeding alligator population. A raised platform was built here to allow good looks at the alligators, which are much less common here than in many parts of Florida. When we visited, there was a mother alligator with a few babies crawling on and near her, and there were also four colorful pig frogs floating in the pond directly below us; only two of them fit in the frame though.
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I saw quite a few small-to-medium pig frogs in the alligator-laden canal at Shark Valley. Some of them were grunting their humorously piggy grunts. None of them posed near my edge of the canal, though, so I only got a series of lame photos like this one.
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Finally, a big old pig frog posing out in the open. This somewhat debris-encrusted frog was hanging out on the road at night, just waiting to be photographed.
Printed references:
- Ashton, R. E. Jr., Ashton, P. S. 1988. Handbook of Reptiles and Amphibians of Florida, Part Three: The Amphibians
- Bartlett, R. D., Bartlett, P. B. 1999. A Field Guide to Florida Reptiles and Amphibians
- Behler, J. L., King, F. W. 1979. The Audubon Society Field Guide to North American Reptiles & Amphibians
- Carmichael, P., Williams, W. 1991. Florida's Fabulous Reptiles & Amphibians
- Conant, R., Collins, J. T. 1998. Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Third Edition, expanded
- Crother, B. I. (ed.) 2017. Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico, with Comments Regarding Confidence in Our Understanding, Eighth Edition