204 Mr. P. L. Sclater on the Neotropical 



Leptomjx macropus, Sw. Zool. 111. n. s. pi. 117; D'Orb. 

 Voy. Ois. p. 197. 



Hylactes megapodius, Gray^ Gen. Birds, i. p. 154; Cab, et 

 Hein. Mus. Hein. ii. p. 21 ; Scl. et Salv. Ex. Om. p. 56, et 

 Nomencl. p. 76. 



Suprk fuscus, in uropygio rufescens : superciliis mento et guise 

 lateribus albis : gula media cum pectore ferrugineo-rufis : 

 abdomiue albo, lateraliter et in crisso rufescente fusco 

 transfasciato : long, tota 9*0, alse 3*7, caudse 2*9. Fern. 

 mari similis. 

 Hab. Chilia centralis et borealis [Darwin). 

 Mus. P.L.S. 



" This bird is common in the dry country of Central and 

 Northern Chili, where it replaces H. tarnii of the thickly 

 wooded southern regions. The H. megapodius is called by 

 the Chilenos "el Turco.^' (Darwin.) 



In general plumage the present species looks like a large 

 edition of Pteroptochus albicollis. 



Genus 7. Acropternis. 



Acropternis, Cab. et Hein. Mus. Hein. ii. p. 20. 



This very remarkable type is readily known by the extra- 

 ordinary flat oval shield into which the culmen is developed, 

 and the long straight hind claw. Its ocellated plumage is 

 likewise unique among the Passeres. 



1. Acropternis orthonyx. 



Merulaxis orthonyx, Lafr. Rev. Zool. 1843, p. 131 ; Mag. 

 de Zool. 1844, Ois. pi. 93. 



Triptorhinus orthonyx, Cab. Wiegm. Arch. 1847, i. p. 220; 

 Scl. P. Z. S. 1855, p. 142 ; Bp. Consp. p. 206. 



Pteroptochus orthonyx. Gray, Gen. Birds, i. p. 155. 

 Acropternis orthonyx, Cab. et Hein. Mus. Hein. ii. p. 20; 

 Scl. Cat. A. B. p. 169; Scl. et Salv. Nomencl. p. 77. 



Ommatornis orthonyx, Sclater, MS. 

 Fuscescenti-niger, albo distiucte guttatus : capite antico et 

 laterali cum gula et coUo toto necnon dorso postico sa- 

 turate rubiginoso-rufis : remigibus et rectrioibus fusco- 

 nigris immaculatis : rostro et pedibus cornels ; mandi- 



