SYNALLAXIS. 95 



The descriptions of the adult male and female are based on 

 specimens in the British Museum collected on Mount Roraima by 

 H. "Whitely at an altitude o£ 5000 to 6000 £t. in August and 

 September, 1883. 



Immature. Crown o£ head, wings, upper tail-coverts, and tail 

 chestnut, inner webs of the bastard-wing and primary-coverts 

 dark brown, as are also those of the primary and secondary quills, 

 which are edged with pale rufous; hind-neck, mantle, and back 

 rufous-brown ; base of forehead, sides of the face, breast, and 

 abdomen dusky brown, the shafts of the feathers on the ear- 

 coverts rather paler and somewhat contrasting ; throat inclining 

 to whitish ; under tail-coverts rufous-brown ; under wing-coverts 

 rufous ; quills brown below with rufous inner edgings ; lower 

 aspect of tail similar to that above. 



Total length 137 mm., exposed culmen 13, wing 61, tail 65, 

 tarsus 22. 



The immature bird described was collected by Mr. McOonnell 

 at Mount Roraima in October 1898. 



Breeding -season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Gviana. Mount Roraima {McConnell collection^; 

 Mount Roraima ( Wliitely). 



Extralimital Range. Surinam (Penard'), Cayenne (Cabanis). 



Habits. Unrecorded in British Guiana. 



410. Synallaxis macconnelli. 



MoConnell's Spine-tail. 



Synallaxis hrunneicauda (nee Scl.) Salvin, Ibis, 1885, p. 419 (Roraima, 

 3500 to 5000 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 41 (part), 1890. 



Synallaxis hrunneicaudalis Brabom-ne & Chubb, B. S. Amer. i. p. 223, 

 no. 2311, 1912. 



Synallaxis macconnelli Chubb, Bull. Brit. Orn. Club, xxxix. p. 78, April 

 1919. 



Adult male. General colour above including the entire back 

 dull brown, becoming tinged with rufous on the tail ; upper wing- 

 coverts and outer aspect of wing chestnut ; inner webs of primary 

 and secondary quills brown with pale rufous edgings ; crown of 

 head and hind-neck chestnut ; sides of face and under surface 

 of body dusky brown ; throat silvery grey, with dark brown 



