378 BIRDS OF BRITISH GUIANA. 



Total length 194 mm., exposed culmen 13, wing 103, tail 85, 

 tarsus 23. 



The specimen described was collected by Mr. McConnell during 

 his expedition to Mount Roraima in October 1898. 



Breeding-season. Unknown. 



Nest. Unrecorded. 



Eggs. Undescribed. 



Range confined to Sritish Guiana. Mount Roraima (^McConnell 

 collection) ; Merume Mountains, Mount Roraima ( WJdtely). 



Habits. Unrecorded., 



Genus PLANESTICUS Bonap. 



Planestioiis Bonaparte, Compt. Rend, xxxviii. p. 3, 1854. Type 

 P. jamaicensis (Gmel.). 



Fig. 147.— To illustrate the shape of the bill. 



The species on which this genus was founded is of medium size. 

 The bill is somewhat short and compressed, and slightly hooked at 

 the tip of the upper mandible. The wing is rounded, the third, 

 fourth, fifth, and sixth primaries are longest and subequal, the 

 second is slightly shorter than the seventh, and the firet less than 

 one-fourth the length of the second. The tail is square at the tip 

 and about three-fourths the length of the wing, and the tarsus 

 exceeds by about one-fourth the length of the exposed culmen. 

 Coloration : male and female similar. 



Key to the Species. 



A. Crown of head black in contrast to the 



back. 



a. Entire back and upper tail-coverts 



slate-grey P. leucops, ^p. 379 



b. Entire back and upper tail-coverts 



dark bronze- brown P. roraima, p. 380. 



B. Crown of head uniform or similar in 



colour to the back. 



c. Under wing-coverts orange-rufous. 



a'. Back ochreous-brown P. JredericJci, p. 381. 



h'. Back olive-grey P. alhiventer, p. 382. 



