oott, H.B. iqi].0. Adaptive coloration in aninals. Kethuen, Londor. 

 ..iinnineham, J.T. and rf.A. Boulenger. 1Q12. Amphibia. In: J.T. 



Cunningham (ed. ), Reptiles, Amphibia, Fishes, and Lover 



Chordates, Nethuen, London. 



Daly, J. ^^ and c.F. Myers. 1Q67. Toxicity of Panamanian poison fro.-s 

 ^^®^^^™;5°^^*-o-^e biolor^ical and chemical aspects. Science " 



Daly, J.'-, and R. "itkop, 1971. Batrachotoxin, an extremely active 

 cr.raio- :^nd neurotoxin from the Colombian arrov; poison frog, 

 'hyllobates curo taenia . Clinical Toxicology b,:3M-3bZ, 



Daly, d.^ . and B. Vl^rop. lo7l. Chemi.Ttry arc pharmacology of frog 

 venoms. In: U. Bucherl and B. Buckley (ed.). Venomous animals 

 and their venoms, Voliome II, Venomous Vertebrates. Academic 

 Press, IT.Y, 



Davies, M. 1Q68. Unusual defence attitude in Rana temporaria. Br. 

 J. Herpctol. Ij :63. 



^^"^^^» -P'^' 1933. Unusual behavior in a leopard frog, Corsia 1933: 



Dehaut, E.-G. 1910. Les venins de batrachiens at les batrachiens 

 venimeux. ^tude de ::oolo2ie T^edic.^lc. G. Steinheil, Paris. 



Deulofeu, V. and E.A. Ruveda. 1971. The basic constituents of toad 

 venoms. In: ¥. Bucherl and E. Buckley (ed.). Venomous animals 

 and their venoms. Volume II, Venomous Vertebrates. Academic 

 iress, N.Y, 



Dickerson M.C 1906. The Frog Book. Doubleday, Page ^ Co., V.Y, 

 ^'^''''''^^* ?;J- 1°12. ^,e feeding habits of serpSntsT Zoologlca li 



Of -U,' 



T^ ■,-.■ '^•"; -"-^^^V^ ^°*® °^ Bufo marinus. Copeia 1923:5-6. 

 Duellman,;/.^. 1956. The frogTTf the hylid genus Fhrynohy as 



^^^*^=^^g^^» ^^^' ^'^'"'°* ^^^- ^•^^^- -°°1- Univ. MlchTWo. 96: 



Duellman V.F. and L. Trueb. iq66. Neotropical hylid frogs, genus 

 - ^^l^-S^^ '^'^^'^' Kansas Publ. Mus. Nat. Hist. 17:281-375. 

 1935 -85-08 survival value of specific characters. Copeia 



Kibl-Fibesfeldt,! 191^7, Imponierstellungen bei amphibien und rep- 

 T^ivor.^ ^oZfl^""^®^** ^^ilhelminenberg Hft. 6:l61;-l66. 



60I6I mortem on a tropical frog. Br. J. Herpetol. Ir. 



Ei-rert, J P. and R. Rehn. I96Q, Quantitative analvse der re: z- 



dA^ T:;^?^"?f^^f^''^i.^S ^^^ visuellem auslosen des fluchtverhaltens 

 der wechselkrote (Bufo viridis Laur.). Behaviour 35:212-231;. 



Firschein, I.L. 1951. Phragmosis and the "Unken Reflex" in a Mexican 



Frazer^ J% r^i Syr^g^^^t^ft^Jgl^' f^opeia 195l:7l|. 

 i-razer, J.F.D 1973. Amphibians. ¥ykeham Science Series. Uykeham 

 Publications, London. 



Freytag, G. E. 1Q62. Vom Abi^jehrverhalten der Knoblauchkrote. Aquar 

 u. Terrar, 9:1. ^ ■•■ » 



Gadow 



/^ ?vlo ;. '^"^P^i^ia and Reptiles. Cambridge ITattiral History 

 8:1-668. lacrillan & Co., London. ^ 



^^°?, ^•^■^' 1°58. Observaciones sobre el comportamiento de almu 

 anfibios argentinos. I. Referldas especialmente a la defensa. 

 retorno y alimentacion en Bufo arenarum Hensel y Leptodactylus 

 ocellatus (L.). Cien. Invei¥r"l lj-;^<;>l-36 2. —^ "^-^ 



-3- 



