iv INTRODFCTION. 



Vireo rora'invr. p. 393 ; Pachijstjlvia thoracicus ahar'iensis, p. 305 ; 

 JSotiocoriis ahariensis, p. 420 ; SporopMla lorKjipennis, p. 420 

 ^S'. f/utturalis roi'ahncc, \k 435 ; Duncanula dimcani, p. 440 

 Pseudocldoris roraima, \). 457 ; Piranga saira marconnelli, p. 524 

 Sturnella mayna praticola, p. 572 : S. mar/na motdirola, p. 573. 



Mr. H. Gruiivokl has, as in the previous volume, prepared the 

 original drawing of each of the coloured plates and of the text- 

 figures which have, in the present volume^ been reproduced by 

 the Sun Engraving Comj.'any. 



It is much to be regretted that, owing to the War and its after 

 effects, the publication of the present volume has been so long 

 delayed. 



I have pleasure in expressing my best thanks to the fol- 

 lowing gentlemen for their assistance during the preparation of 

 this volume : — Lord KothschilcJ, Mr. Percy 1\. Lowe of the 

 British Museum (Natural History), and Mr. Tom Iredale. 



CHAHLES CHUBB. 

 London, November IStli, 1921. 



BIBLIOGRAPHY. 



Beebe, William G., Isxess Hartley, and Paul G. Howes. — 

 Tropical Wild Life in British Guiana, vol. i. New York, 1917, 

 pp. XX, 504. 



