BATRACHIA, regeneration of lost parts in, ii.
"The Variation of Animals and Plants Under Domestication, Volume II (of 2)" by Charles Darwin
Most gilled batrachia live in North America.
"Was Man Created?" by Henry A. Mott
Guenther, Catalogue Batrachia Salientia Brit.
"The Systematics of the Frogs of the Hyla Rubra Group in Middle America" by Juan R. León
Class IV of the Vertebrata comprises the Batrachia.
"Natural History in Anecdote" by Various
No fossil remains of mailed Batrachia are known during the whole of the subsequent periods.
"The History of Creation, Vol. II (of 2)" by Ernst Haeckel
CLASS BATRACHIA: THE BATRACHIANS.
"Elementary Zoology, Second Edition" by Vernon L. Kellogg