On the arrangement of the genera of Birds, 395 



*** Subfam. Laniana. Swains. 



Sparactes. ///. — Lanius. Auct. — Falcun cuius. Vieill. — Cycla- 



rhis. Swains. — Lanio. VieilL ? 

 **** Subfam. Thamnophilina. Swains, 

 Vanga. Cuv, — Thamnophilus. Vieill. — Malaconotus. Swains. 



— Formicivora. Swains. — Drymophila, Swains, — Lania- 



rius. Vieill, — Prioiiops. Vieill, 

 ***** Subfam. Campephagina. Swains. 

 Graucalus. Cuv. — Campephaga. Vieill. [Ceblepyris. Cuv,"] 



III. Fam. Merulid^. [Gen. Turdus, Oriolipars. Linn.] 

 * Subfam. Myiotherina. Swains, 



Urotomus. Swains, — Myiothera. ///. [Myrmothera. Vieill,'] — 

 Pitta. Vieill, — Grallaria. Vieill. — Conopophaga. Vieill, — 

 Cinclus. Bechst.? [Hydrobata. Vieill.'] — ChamaBza.* 

 ** Subfam. Merulina. 

 Merula. Ray. — Sphecotheres. VieilL ? 

 *** Subfam. Orioiina. 

 Oriolus. Auct. 

 **** Cossyphina. 

 Cossypha.f — Timalia. Horsf, ? 



* Cham^za. 



Rostrum subbreve, subforte, culmine leviter arcuato; naribus basalibos, 

 ■oblongo-ovalibus, longitudinalibus, plumis parvulis obtectis. 



Alee brevissimae, rotundatse; remige Ima, brevi, 2d^ et 7raS,, 3t& et 6t4 

 sequalibus, 4t^ et 5ta fere aequalibus, longissimis ; pogoniis utrinque fere 

 integris. 



Pedes subgraciles ; tarsis elongatis ; acrotarsiis scutellatis, in scuta novem 

 divisis ; paratarsiis in scutula plurima divisis ; digitis subelongatis, gracilibus, 

 duobus extimis ad basin connexis, unguibus gracilibus, compressis; haltuce 

 subelongato, subforti, ungue subeiongato, arcuato, maxime compresso. 



Cauda brevis, rotundata, 



Obs. Genus subfamilias Myiotherinam, Swains., et MeruUnam eximie con- 

 nectetis. 



Meruloides. C. supra brunnea^ subtus rufescenti-albida, nigra longitudina- 

 iiter maculata; gula alba ; crisso, rectrkumque apice rufescentibus. 



Habitat in Brasilia. 



+ I take this opportunity of characterizing one of the many forms that -enter 



