Species of the Family Pteroptocliidse. 201 



Genus 5. Pteroptochus. 



Pteroptochos, Kittl. Mem. pres Acad. Sc. St.-Pet. 1831, 

 p. 178 : type P. riibecula. 



The geuus embraces tAvo species confined to Chili, where, 

 however, they are both abundant and well known. The wings 

 in these birds are exceedingly short, and hardly ever used in 

 flight. The divisions of the tarsal scutes are well marked. 

 The hind claw is short and curved. The rectrices are twelve 

 in number : the tail is much rounded. 



1. Pteroptochus rubecula. 



Pteroptochus rubecula, Kittl. Mem. pres. Acad. Petersb. 

 1831, p. 179, pi. 2; Bp. Consp. p. 205; Cab. et Hein. Mus. 

 Hein. ii. p. 20; Gray, Faun. Chil. i. p. 304; Ph. et Landb. 

 Cat. Av. Chil. p. 15 ; Scl. Cat. A. B. p. 169; P. Z. S. 1867, 

 p. 325; Scl. et Salv. Nomencl. p. 76. 



Megalonyx rubecula, Lafr. et D'Orb. Syn. Av. i. p. 16. 



Leptonyx rubecula, D'Orb. Voy. Ois. p. 196, et Megalonyx 

 rufogularis, D^Orb. ibid. pi. 7. f. 3. 



Suprk fuscus, uropygio rufescentiore : superciliis et pectore 

 cum gula Isete rufis : ventre albo nigi'oque transfasciato : 

 lateribus et crisso rufescentibus : rostro corneo : pedibus 

 fuscis : long, tota 6"5, alse 2'9, caudse 2*7. 



Hab. Chilia merid. et ins. Chiloe [Darwin). 



Mus. P. L. S. 



This is the " Cheucau" of the Chilians. It extends from 

 Colchagua southwards to Chiloe, frequenting the damp forests. 

 For an account of its habits see Darwin, Zool. Beagle, iii. 

 p. 73. 



2. Pteroptochus albicollis. 



Pteroptochus albicollis, Kittl. Mem. pres. Acad. Petersb. 

 1831, p. 180, pi. 3; Bp. Consp. p. 205; Darw. Voy. Beag. 

 Zool. iii. p. 72 ; Cab. et Hein. Mus. Hein. ii. p. 21 ; Gray, 

 Faun. Chil. i. p. 303 : Burm. La Plata-Reise, ii. p. 471 ; Ph. 

 et Landb. Cat. Av. Chil. p. 15 ; Scl. Cat. A. B. p. 169 ; P. Z. S. 

 1867, p. 325 ; Scl. et Salv. Nomencl. p. 76. 



Megalonyx medius, Less. 111. de Zool. pi. 60. 



Megalonyx albicollis, Lafr. et D'Orb. Syn. Av. i. p. 15. 



