PACHYKHAMPnUS. — LATHRIA. 277 



This series of four young birds was collected on the Mazaruni 

 and Bonasika Rivers. 



Breeding-aeasoti. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Supenaam River, 

 Mazaruni River, Bartica, Bonasika River, Makauria River, 

 Arawai River, Great Falls Demerara River, Arwye Creek 

 (^McConnell collection) ; Merume Mountains, Kamakusa, Bartica 

 ( Whit eh/) ; Georgetown (Beehe). 



EHralimital Range. Surinam (J\Iervem)^ Venezuela, Eucador, 

 East Peru. 



Hahits. Unrecorded in British Guiana. 



Genus LATHRIA Swains. 

 Lotliria Swainson, Classif. B. ii. p. 255, 1S37. Type L. einerea (Vieill,). 



Fig. 110. — Latliria einerea. 



The members of this genus are Inrds of rather large size with 

 proportionately small feet. The bill, which is keeled and sharply 

 hooked at the tip of the upper mandible, is wide and depressed at 

 the base, where the width is about two-thirds the length of the 

 exposed culmen. The rictal bristles are moderately developed. 

 The wing is roundetl, the third, fourth, and lifth primaries longest 

 and equal, the second about equal in length to the sixth, and the 

 first aljout erpial to the seventh. The tail is almost scpiare at 

 the tip ami about ton-twelfths tho length of the wing. The tar.sus 

 is aitoiit <'t|iiiil to the niidtlJH tue and claw in length. Colo- 

 ration ; malt! and female ■similar. 



