386 BIEDS OF BRITISH GUIANA. 



Range confined to British Guiana. Abary River, Makauria 

 Kiver (McConnell collection). 

 Habits. Unrecorded. 



588. Planesticus pheeopygixs. 

 Cabanis's White-thkoated Thrush. 



Turdus pheBopygus Cabanis in Schomb. Eeis. Gruian. iii. p. 666, 1848 ; 

 Seebohm, C.at. B. Brit. Mus. v. p. 208, 1881 (Demerara) ; Salvin, 

 Ibis, 1885, p. 197 (Bartica Grove, Camacusa, Merume Mts., 

 Eoraima) ; Quelch, Timehri (2) v. p. 72, 1891 (Georgetown). 



Flanestieus phceopygus Beebe, Our Search for a "Wilderness, pp. 322-324, 

 340 cum fig. 132, 1910 (Aremu Eiver) ; Brabourne & Chubb, B. S. 

 Amer. i. p. 344, no. 3519, 1912. 



Planesticus phcBopygus phwopygus Beebe, Tropical Wild Life in British 

 Guiana, p. 135, 1917 (Bartica). 



Adult. General colour above including the head, back, wings, 

 and tail russet-brown ; inner webs of flight-quills blackish, paler 

 on the inner edges ; upper tail-coverts inclining to slate-colour ; 

 tail-feathers dark brown ; sides of the face like the back; throat 

 white broadly streaked with dark brown ; breast sind sides of 

 body ash-grey, darker and inclining to lead-grey on the latter ; 

 abdomen and under tail-coverts white ; axillaries grey ; under 

 wing-coverts also grey, more or less intermixed with white ; 

 under surface of flight-quills and lower aspect of tail dark brown. 



Total length 187 mm., exposed culmen 14, wing 102, tail 84, 

 tarsus 29. 



The specimen described was collected on the Kamakabra River 

 in 1911. 



Breeding-season. Unrecorded in British Guiana. 



Nest. "A beautiful nest made of green growing moss, and 

 placed close to the trunk of a tree about six feet from the ground " 

 {Beehe). 



Eggs. " Two in number, pale blue-green, thickly spotted with 

 brown of various shades, much more densely at the larger end " 

 {Beehe). _ _ _ 



Range in British Guiana. Ituribisi River, Bartica, Kamakabra 

 'River {McConnell collection) ; Mount Roraima, Merume Mountains, 

 Kamakusa, Bartica (Whiteli/) ; Georgetown (Quelch) ; Aremu 

 River and Bartica {Beehe). •■ ■ 



Extralimital Range. North Brazil, Venezuela, Ecuador, East 

 Peru. 



