NEOPIPO. — SCOTOTHORUS. 263 



coverts cinnamon-rufous ; throat, cheeks, and lores greyish white ; 

 top o£ head olive-brown, with a partly concealed patch of yellow 

 on the middle of the crown; lower hind-neck similar to the 

 crown but tinged with grey ; sides of face grey; upper ])ack and 

 outer aspect of wing rufous-chestnut; inner webs of upper wing- 

 coverts and flight-quills blackish; primary-coverts uniform blackish. 



Total length 91 mm., exposed culmen 8, wing 50, tail 36, 

 tarsus 14. 



The description is taken from the type of the species, which was 

 collected on the Ituribisi River in October 1908. 



Adult female. Similar to the adult male, but differs in having 

 the sides of the crown and nape dusky grey and the middle of 

 the crown rufous. Wing 47 mm. 



The female described was collected on the Makauria River in 

 August 1910. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Makauria River 

 {McConnell collection^ 



Extralimital Range. Cayenne. 



Habits. Unrecorded in British Guiana. 



Genus SCOTOTHORUS Oberh. 



Scotothorus Oberholser, Proc. Acad. Nat. Sci. Philad. 1899, p. 208. 

 Type S. turdinus (Wied). 



The birds of this genus are larger, compared with the rest of 

 the family, and dull in colour. The bill is sharply hooked at the 

 tip of the upper mandible, the width at the anterior portion of the 

 nostril being about half the length of the exposed culmen and about 

 equal to the depth. Rictal bristles numerous but only feebly 

 developed. The wing is rounded, the third, fourth, and fifth 

 primaries longest, the second shorter than the sixth but longer 

 than the seventh. The tail is square at the tip and about three- 

 fourths the length of the wing and the tarsus about twice the 

 length of the exposed culmen. Coloration : male and female 

 similar. 



