EUSCAKTHMIIS. — MICROCOCHLBARIPS. 159 



Total length 93 mm., exposed culmen 13, wing 48, tail 33, 

 tarsus 19. 



The bird described was collected by Mr. McConnell at Mount 

 Roraima in October 1898. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Gruiana. 



Ugc/s. Undescribed from British Guiana. 



Range in British Guiana. Mount Roraima (McConnell collec- 

 tion) ; Mount Roramia ( Whitely). 



EMralimital Range. Surinam [Penard). 



Habits. Unrecorded in British Guiana. 



Genus MICROCOCHLEARIUS Chubb. 



MicrococMearius Chubb, Bull. Brit. Orn. Club, xxxix. p. 98, 1919. 

 Type M. josephinw (Chubb). 



A 



Fig. 64. — MicrococMearius josepJiince. 



The species on which this genus was founded has the bill 

 flattened, the width at the base is about two-thirds the length of 

 the exposed culmen. The wing is rounded, the third, fourth, 

 fifth, and sixth primaires longest and subequal, the second about 

 equal in length to the seventh and the first to about that of the 

 ninth. The tail is slightly rounded at the tip and about four- 

 fifths the length of the wing. The tarsus is about half the length 

 of the tail and the middle toe- and claw are about half that of 

 the tarsus. Coloration : male and female similar. 



