SCLATERIA. — MYRMODERUS. 59 



bastard-wing edged with wliite on the outer web ; primary and 

 secondary quills blackish ; axillaries and under -wing-coverts 

 tipped with white; under surface o£ flight-quills smoke-brown. 



Total length 156 mm., exposed culmen 17, wing 64, tail 56, 

 tarsus 27. 



Adult female. General colour above chocolate-brown, darker 

 and tinged with grey on the top of the head and sides of the hinder 

 face ; upper wing-coverts tipped with pale ferruginous ; outer 

 edge of bastard-wing similar; throat and breast chestnut be- 

 coming darker on the abdomen, flanks, and under tail-coverts ; 

 under wing-coverts hair-brown more or less marked with 

 chestnut ; tail blackish above and below. 



Total length 140 mm., exposed culmen 17^ wing 63, tail 53, 

 tarsus 24. 



This species is not represented in the McConnell collection, 

 and the descriptions are taken from the types in the Britisii 

 Museum, which were collected at Mount Rorainia by the late 

 Henry Whitely — Salvin-Godman collection. 



Breeding-season. Unknown. 



Nest. Unrecorded. 



Enrfs. Un described. 



Range confined to British Guiana. Mount Roraima [Whiteli/]. 



Habits. Unrecorded. 



Genus MYRMODERUS Ridgw. 



Myrmoderns Ridgway, Proc. Biol. Soc. Washington, xxii, p. 70, 1909. 

 Type M. loricalus (Liclit.). 



Fig. 28. — Ml/ r mod eras longipes. 



The chief characters wliich distinguish this genus are the long 

 bill, the almost s(juare wing, and the long tarsi. The bill is 

 slightly hooked. The wing is only slightly rounded, the 

 secondaries being almost ecjual in length to the primaries. The 



