Anura, 136, 145, 147.
"Our Common Insects" by Alpheus Spring Packard
Nieden, Das Tierreich, Anura I, p. 245, June 1923.
"The Systematics of the Frogs of the Hyla Rubra Group in Middle America" by Juan R. León
Nieden, Das Tierreich, Amphibia, Anura 1, p. 248, June, 1923.
"A Review of the Frogs of the Hyla bistincta Group" by William E. Duellman
Tadpoles of Mexican Anura.
"The Amphibians and Reptiles of Michoacán, México" by William E. Duellman
They need not be removed from the order, but, in this respect, recognized as more primitive than any other existing Urodela or Anura.
"The Ancestry of Modern Amphibia: A Review of the Evidence" by Theodore H. Eaton
Batrachia, which are divided into three orders: I Pseudophidia, II Urodela, III Anura.
"Natural History in Anecdote" by Various
Frog amphibia (Anura); 36.
"The History of Creation, Vol. II (of 2)" by Ernst Haeckel
The work presented here comes from papers I have had the pleasure of working on with my co-authors Anura Abeyesinghe, Debbie Leung, Graeme Smith and Andreas Winter.
Entanglement in Random Subspaces