• GRALLARICULA. — FURNARIUS. 87 



Breeding-season. Unknown in British Guiana. 

 Nest. Unrecorded in British Guiana. 

 Eggs. Undescribed from British Guiana. 



Range confined to British Guiana. Kukenam Mountains 

 (Whiteli/). 



Habits. Unrecorded. 



Family FURNARIID^. 



This family consists of ten genera and about seventy-three 

 species. Three of the genera and five of the species are repre- 

 sented in British Guiana. 



Genus FURNAmUS Vieill. 



Furnarius Vieillot, Analyse d'une nouv. Ornith. element, p. 47, 1819. 

 Type F. rufiis (Gmel). 



Fig. 40. — Furnarius riifus. 



The members of the present genus are distinguished by having 

 tlie exposed culinen al)Out equal in length to that of the middle 

 toe and claw. The wing is almost square, the secondaries being- 

 only about 5 mm. shorter than the primaries, the third, fourth, 

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

 equal to the seventh. The tail is slightly rounded and ratlun- 

 more than half the length of the wing, and the tarsus about the 

 same length as the tail. Coloration : male and female similar. 



404. Furnarius leucopus leucopus. 



White-eyebrowed Oven-bird. 



Furnarius leucopus Swains. Anim. in Menag. p. 32.3, 1838 (Guiana); 

 Cab. in Sclioinb. Jtt'is. Guian. iii. p. 088, 1848; Salvin, ll)is, 1885, 

 p. 418; Sclater, Cat. B. Brit. Miis. .\v. p. Ki, 1800 (J{riti.sli 

 Guiana;; Brabourne & Chul)h, B. S. Amer. i. p. 222, no. 22.'J9, 1912. 



Adult male. General colour above cinnanion-rufous, including 



