278 BIRDS OF BRITISH GUIANA. 



Key to the Species. 



A. Fore-neck, hind-neck, and under tail- 



coverts uniform ' with the rest of 



plumage L. cinerea, p. 278. 



B. Fore-neck, hind-neck, and under tail- 



coverts not uniform with the rest of 

 the plumage. 



a. A collar that encircles the neck and 



under tail-coverts rose-red ; IJ. streptophora, c? , p. 280. 



h. No red collar on the neck; under tail- 

 coverts chestnut L. streptophora, $,p. 280. 



530. Lathria cinerea. 

 Gret Screaming Piha. 



Ampelis cinerea Vieill. N. Diet. d'Hist. Nat. viii. p. 162, 1817 (Cayenne). 



Lipangus cineraceus Cab. in Schomb. Keis. Guian. iii. p. 693, 1848. 



Lathria . cinerea Salvin, Ibis, 1885, p. 302 (Bartica Grove, Camacusa, 

 Merume Mts., Koraima, 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xiv, 

 p. 352, 1888 (Eoraima, Merume Mts., Camacusa, Bartica Grove)! 

 Quelch, Timehri (2) ii. p. 375, 1888 (Abary Eiver); id. op. cit. iv. 

 p. 115, 1890 (Great Falls Demerara River) ; Beebe, Our Search for 

 a Wilderness, pp. 188, 246, 307, «42, 392, 1910 (Aremu Eiver) ; 

 Brabourne & Chubb, B. S. Amer. i. p. 317, no. 3238, 1912. 



"The Gold or Greenheart Bird" (Beebe); "Pi-pi-yo" or 

 "Green-heart Bird" {Quelch). 



Adult male. Head, sides of neck, back, scapulars, and upper 

 tail-coverts slate-grey ; wings and tail brown ; throat and under 

 surface also grey, but much paler than the upper surface, the 

 feathers on the throat showing pale shaft-lines; axillaries and 

 under wing-coverts pale ash-grey ; under surface of flight-quills 

 and lower aspect of tail greyish brown. 



Total length 243 mm., exposed culmen 24, wing 121, tail 107, 

 tarsus 22. 



The male described was collected on the Supenaam River in 

 1910. 



Adult female. Similar to the adult male, and differing only in 

 having the outer aspect of the wing and tips of the tail-feathers 

 tinged with rufous. Wing 116 mm. 



The description of the female is taken from an example collected 

 on the Ituribisi River in October 1908. 



