164 BIRDS OF BRITISH GUIANA. 



green ; ear-coverts pale brown ; throat pale dusky-brown witb 

 yellowish-white margins 'to the feathers ; breast and sides of the 

 body yellowish green ; abdomen, under tail- coverts, under wing- 

 coverts, and axillaries very pale lemon-yellow; under surface of 

 quills ])ale brown with very narrow pale inner edges ; lower 

 aspect of tail uniform greyish brown. 



Total length 92 ram., exposed culmen 9,1 wing 46, tail 39, 

 tarsus 17. 



The bird from which the description is taken was collected on 

 the Ituribisi River in November 1906. 



This bird was wrongly compared with Lnpliotriccnx spicifer by 

 me in the ' Bulletin ' of the British Ornithologists' Club, xxxix. 

 p. 90, 1919. It should have been compared with Motacilla gahaia 

 Bodd., which was founded on Daubenton's " Figuier hupe de 

 Cayenne," PI. Enl. pi. 391, fig. 1, Habitat : Cayenne and Lower 

 Amazonia, from which it differs subspecifically — being larger in 

 measurement and brighter in colour. 



Breeding-season. Unknown in British Guiana. 

 Nest. Unrecorded in British Guiana. 

 Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Arwye Creek 

 {McConnell collection). 



Extralhnital Range. ? Venezuela. 



Ilahits. Schomburgk states (Reis. Guian. iii. p. 702) that this 

 bird is distributed throughout British Guiana and is most 

 frequently observed on the Cecropia trees. 



Genus HAPALOCERCUS Cab. 



Uapnlocerciis Cabaiiis," Archiv fiir Naturg. 1847, i. p. 2.j4. Type 

 II. meloryplius (Wied). 



Fig, 68. — Hapalocercus melorhyphus. » 



This genus is based on birds of small size. The bill is small and 

 narrow, the width about equal to half the length of the exposed 



