LIST OF PLATES. 



1921, Part I. (pp. 1-186). 



Page 



B. G . Boulenger : Pis. I. & II. Colour-changes of the Spotted Sala- 



mander (Salamandra maculosa) . . 99 



C. F. Sonntag: Pis. L- IV. Anatomy of the Three-toed Sloth 



(Bradypus tridactylus) 157 



G. Elliot Smith : PI. I. 



Photographs of a living example of 

 Tarsius 184 



NOTICE. 



The ' Proceedings ' for the year are issued in four parts, paged consecutively, 

 eo that the complete reference is now P. Z. S. 1921, p. . . . The Distribution 

 is usually as follows: — 



Part I. issued in March. 

 „ II. „ June. 



„ III. „ September. 



„ IV. „ December. 



' Proceedings,' 1920, Parts I. & II. (pp. 1-194), were published together on 

 July 21st, 1920. Part III. on September 15th, 1920. Part IV. on January 

 15th, 1921. 



The Abstracts of the ' Proceedings,' Nos. 211-212, are 

 contained in this Part. 



