AMPHIBIANS 285 



Classification of Amphibia mentioned 



Order I. Urodela. Amphibia having usually poorly developed appendages. 



Tail persistent through life. Examples, mud puppy, newt, salamander. 

 Order II. Anura. Tailless amphibia, which undergo a inotamorjjhosis — 



breathe by gills in larval, by lungs in adult, state. Examples, toad and frog. 



Reference Books 

 for the pupil 



Davison, Practical Zoology, pages 199-211. American Book Company. 

 Herrick, Text-book in General Zoology, Chap. XX. American Book Company. 

 Nature Study Leaflets, XVI, XVII. N.Y. Department of Agriculture. 

 Hunter and Valentine, Laboratory Manual of Biology, pages 170-177. Henry Holt 



and Company. 

 Jordan, Kellogg, and Heath. Animal Studies. D. Appleton and Company. 



for the teacher 



Holmes, The Biology of the Frog. The Macmillan Company. 



Parker and Haswell, Text-book of Zoology. The Macmillan Company. 



