522 Zoological Society. 



Fam. Muscicapid^e. 

 Subfam. Fluvicolin^e. 

 Genus Copurus*, n. g. 



<: Platyrhynchus, Spix, < Muscipeta, Cuv. 



Diff. Char. — -The two medial rectrices greatly prolonged. 

 Rostrum triangulare (desuper spectanti) paulo longius quam latum, 



modice depressum. Culmen rotundatus, ad basin lente, versus 



apicem citius decurvans. Nares ovatae, patulse. Tomia maxillaria 



modice emarginata. Commissura leniter decurvata, gonys leniter 



ascendens. Vibrissa? rictales mediocres. 

 Ala longiusculse, remige prima breviore, 2a, 3 a , 4 a , fere aequalibus. 

 Cauda mediocris, quadrata, nisi quod maris rectrices duse intermedia? 



graciles spathuliformes reliquas magis duplo excedunt. 

 Tarsi mediocres, acrotarsiis paratarsiisque scutellatis. Digitus ex- 



ternus interno longior, ad basin paulo cum intermedio coadunatus. 



Ungues longiusculi, satis curvati, acuti, graciles. 



Habitat in America Meridionali. 



Species unica, C. filicaudus (Spix), Av. Braz. v. 2. pi. 14. (Mus- 

 cicapa leucocilla, Hahn.) 



Obs. This bird bears much resemblance to Pipra in the colours of 

 its plumage and in the elongate rectrices, as Mr. Swainson has re- 

 marked (Classif. Birds, v. ii. p. 90). The depressed beak, however, 

 rounded culmen, shorter tarsus, and slender claws, sufficiently prove 

 its true place to be among the Flycatchers, near Alectrurus. 



Fam. Piprid^e ? 



Subfam. Pardalotin^e ? 



Genus PaioNocHiLust, n. g. 



■< Pardalotus, Temm. 



Diff. Char. — Margins of the beak minutely serrated. 

 Rostrum longiusculum, subcompressum, mandibulis subsequalibus ; 



culmine subcarinato, juxta basin recto, delude usque ad apicem 



gradatim decurvato ; commissura modice decurvata ; gonyde sur- 



sum curvata. Maxilla haud emarginata, sed tomia mandibular 



utriusque per medietatem externam minutissime serrata. Nares 



oblongae, membrana supra tectse. 

 Alee mediocres, remige la spuria, 3a, 4a, et 5 a subaequalibus. 

 Cauda brevis, rectricibus sequalibus. 

 Pedes subbreves, gressorii, acrotarsiis subscutellatis, paratarsiis in- 



tegris. Digitus externus interiore longior, ad medium per longi- 



tudinis dimidium coadunatus. 



Habitant in Malasia. 



Species : 1. P. percussus (Temm.), PI. Col. 394. f. 2. 2. P. thora- 

 cicus (Temm.), PI. Col. 600. f. 1, 2. 3. P. maculatus (Temm.), PI. 

 Col. 600. f. 3. 



Obs. The nearest affinity of this group is Calyptomena, Raff., to 

 which it approaches in the structure of the beak and feet much more 



* Ku>7rri, an oar ; ovpd, the tail, 

 f Hpib)v, a saw ; xeZXos, a lip. 



