206 Mr. P. L. Sclatcr's Synopsis of the 



scribed by tlie writer in 1850^ only a single species is known. 

 I believe this bird is frequently passed over as the female or 

 young of D. personata; but a careful examination soon shows 

 the difference. 



These two genera together constitute a very well-marked 

 section of the purely Neotropical family Ccerebidae, charac- 

 terized by their hooked upper mandible. Lafresnaye pointed 

 out this as their natural place in the series many years ago*; 

 and it is surprising that some authors f should have thought 

 of annexing them to the Dendrocolaptidae^ with which they 

 have really no sort of connexion. 



The two genera of Diglossiuse may be separated as fol- 

 lows : — 



Rostro crassiore, gonyde ascendente 1. Diglossa. 



llostro tenuiore, elongatiore, gonyde recto 2. Dit/lossojns. 



I now proceed to give an account of the species of these 

 two genera known to me^ based mainly on the study of the 

 series in my own collection and that of Messrs. Salvin and 

 Godman. I have likewise cursorily examined the specimens 

 in the British Museum. 



Genus I. Diglossa. 



Diglossa, Wagler, Isis, 1832_, p. 280 : type D. baritula. 



"Campylops, Licht. MS.," Cab. Mus. Hein. i. p. 96: type 

 D. baritula. 



Uncirostrum, Lafr. Rev. Zool. 1839^ p. 100 : type D. car- 

 honaria. 



Agrilorhinus, Bp. Nuovi Ann. Sc. Nat. i. p. 408 (1838) : 

 type D. haritula. 



Serrirostrum, Lafr, et d'Orb. Syn. Av. ii. p. 25 (1838) : 

 type D. carbonaria. 



Tephrodiglossa, Cassin, Pr. Ac. Phil. 1864, p. 273 : type 

 T>. carbonaria. 



Pyrrhodiglossa, ej. ibid. : type D. mystacalis. 



('yanodlglossa, ej. ibid. : type D. jjersonata. 



Melanodiglossa, cj. ibid. : type D. lafresnayi. 



* Rev. Zool. 1839, p. 100, et 1840, p. 319. 



t E. (/.{}. \l. Gray in his ' List of Genera of Birds ' (ed. 2), p. 23 et alibi. 



