29 
modicé depressum. Culmen rotundatus, ad basin lenté, versus 
apicem citits decurvans. Nares ovate, patule. Tomia maxillaria 
modicé emarginata. Commissura leniter decurvata, gonys leniter 
ascendens. Vibrisse rictales mediocres. 
Ale longiuscule, remige prima breviore, 24, 34, 44, fere zqualibus. 
Cauda mediocris, quadrata, nisi quod maris rectrices duz intermediz 
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. pl. 14. (Mus- 
cicapa leucocilla, Hahn.) 
Obs. This bird bears much resemblance to Pzpra 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. Piprip# ? 
Subfam. ParDALOTINE ? 
Genus PrionocuHiLvus*, n. g. 
=< Pardalotus, Temm. 
Diff. Char.— Margins of the beak minutely serrated. 
Rostrum longiusculum, subcompressum, mandibulis subzqualibus ; 
culmine subcarinato, juxta basin recto, deinde usque ad apicem 
gradatim decurvato; commissura modice decurvata; gonyde sur- 
sum curvata. Maxilla haud emarginata, sed tomia mandibule 
utriusque per medietatem externam minutissimé serrata. Nares 
oblonge, membrana supra tectze. 
Ale mediocres, remige 14 spuria, 34, 44, et 54 subzequalibus. 
Cauda brevis, rectricibus zqualibus. 
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.), Pl. Col. 394.f.2. 2.P. thora- 
cicus (Temm.), Pl. Col. 600. f. 1, 2. 3. P. maculatus (Temm.), Pl. 
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 
nearly than to Pardalotus. The serrations of the tomia appear not 
to have been hitherto noticed. 
* TIpiwy, a saw; xetAos, a lip. 
