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 Uebersetzungsrecht vorbehalten. 



The Amphibian larynx. 

 By 



Harris H. WUder, 



Prof. of Zoology in Smith College, Northampton, Mass. U. S. A. 



With plates 19 — 21 and 4 figures in the text. 



Contents. 



Introduction. Previous investigations and methods. 



Part I. Cartilages. 



1) Proteidae. 



Necturus lateralis. 

 Proteus anguineus. 



2) The remaining Ichthyoidea. 



Amphiuma tridactylum. 

 Siren lacertina. 

 Menopoma alleghaniense. 



3) Salamandridae. 



4) Alytes obstetricans. 



5) The genus Rana. 



6) Bufo lentiginosus. 



7) The Hylidae. 



I Hyla versicolor. 



J Acris gryllus. 



I Hylodes pickeringii. 



' Chorophilus feriarum. 



8) Bombinafor igneus. 



9) Aglossa. 



I Pipa americana. 

 [ Dactylethra capensis. 

 10) Summary of Part I. 



