EHYNCHOCYCLUS. 149 



Genus EHYNCHOCYCLUS Oab. & Hein. 



Bhjnchocyelus Cabanis & Heine, Mus. Hein. ii. p. 56, 1859. Type 

 B.Jlaviventris (Wied). 



Fig. 60. — JRhynchocyelus flaviventris. 



The species on which this genus was founded is rather a small 

 bird with a depressed bill which is hooked at the tip of the upper 

 mandible, the width at the base is about equal to the length of the 

 exposed culmen. The rictal bristles are only feebly developed. 

 The wing is rounded, the second, tliird, fourth, and fifth primaries 

 longest and equal, the first about equal in length to that of the 

 eighth. The tail is long and square at the tip and about five- 

 sixths the length of the wing. The tarsus is about twice the 

 length of the exposed culmen. Coloration : male and female 

 similar. 



Key to the S2'>ecies. 



A. Upper surface dark olive-green; ' throat 



greyish ; fore-neck jrellowish green. 

 a. Larger, wing more than 60 mm.; tail 



more than 50 mm .-. , . S.s. examinatus, p. 149. 



5. Smaller, wing less than^ 60 mm. ; tail 



less than 50 mm R. p. inquisitor,.}). 150. 



B. Upper surface yellowish green; throat and 



fore-neck ochreous-yello^v R-f- gloriosus, p. 151. 



446. Rhynchocyclus sulphurescens examinatus. 



Pelzeln's Flat-bill. 



Wiynohocyclus assimilis Pelzeln, Orn. Bras. pp. 110, 181, nom. nud.. 



1869' (Eio Negro, N. Brazil) ; Brabom-ne & Chubb, B. S. Amer. i'. 



p. 271, no. 2759, 1912. 

 Bhynchocyelus sulphurescens (nee Spix) Salvin, Ibis, 1885, p. 295 



(Bartioa Grove, Camacusa, Merume Mts., Eoraima 3500 ft.) ; 



Sclater, Cat. B. Brit. Mus. xiv. p. 168 (part), 1888 (Carimang 



Eiver) . 

 Bhynchoeylus sulphurescens examinatus Chubb, Bull. Brit. Orn. CI. xi. 

 ' p. 108, March 1920 (Bartica). 



Adult male. General colour of upper surface, including the 



