Secretary'* Report. 1951. Appendix 7 



Plate 4 



1. Meller's Chameleon (Chamaeleon melleri). from Nyasaland. Africa 



A large chameleon with prehensile tail and a hornlike projection on the end of 

 the snout. It can change color at will and move its eyes independently. 



2. Tiny frogs in the National Zoological Park 



Left, striped African tree frog {Afrixalus fornasinii Bianconi); center, black and 

 green frog {Dendrobates tintoria) from South America, commonly known as the 

 arrow-poison frog; right, yellow atelopus (Atelopus varius cruciger). a delicate 

 translucent lemon-colored frog from the Panama region. (Photograph by- 

 Ernest P. Walker.) 



