USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

Checklist of Amphibian Species and Identification Guide

Carpenter Frog, Rana virgatipes

Carpenter Frog
The Carpenter Frog is a medium to small frog attaining lengths around 2.5 inches. The are so named because their call can be described as sounding like a carpenter hammering. What at first glance appears to be a dorsolateral fold is actually a light line starting on the eye, Carpenter frogs do not have dorsolateral ridges. There is a second light line on the side and these lines help to distinguish this frog from others. As in some other species of frogs, the gender of the individual frog can be determined by the size of the tympanic membrane relative to the eye. The membrane will be considerably larger than the eye in the males and about the same size as the eye in the females. Carpenter Frogs are closely associated with sphagnum bogs found in the coastal plain fron New Jersey, where this specimen was found, to the Okefenokee Swamp in Georgia.
Carpenter Frog Range

Notice:  All images contained hereafter are the property of the said photographer. They are not to be reproduced, copied, printed, stored, or distributed without written permission of the photographer.

Return to checklist:   family/species   species only
Return to Contents

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 05:02:53 EST
Sioux Falls, SD [sdww55]