1870.] MESSRS. SCLATER AND SALVIN ON THE CRACID&. 519 
characters, and is identical with it in plumage; the other, which has 
been recently purchased from the Jardin d’ Acclimatation, is appa- 
rently darker, and has the white bands on the upper surface ex- 
tremely narrow. 
Genus 2. NorHocrax. 
Type. 
Nothocrax, Burm. Syst. Ueb. iii. p. 347 ...... N. urumutum. 
NoTHOCRAX URUMUTUM. 
Crax urumutum, Spix, Av. Bras. ii. p. 49, t. 62; Cab. in 
Schomb. Guian. ili. p. 746; Reichenb. Tauben, p. 132; Pelzeln, 
Orn. Bras. p. 288. 
Urax urumutum, Burm. Syst. Ueb. iii. p. 347. 
Rufescens, nigro vermiculata ; pilei cristati plumis elongatis pen- 
dentibus nigris: cervice undique et corpore subtus castaneis, 
ventre imo in cinnamomeum trahente: cauda nigricante, rectri- 
cum pogoniis externis rufescentibus nigro vermiculatis : spatio 
oculari late nudo, in ave viva cerulescenti-flavo : rostro rubro: 
pedibus corylinis: long. tota 24, ale 12, caude 10, tarsi 2°6. 
Hab. British Guiana (Schomb.); Rio Negro (Spix et Natt.) ; 
Rio Pastaza, Upper Amazons (Z£. Bartlett). 
Mus. Brit., Vindob., Derb. 
Genus 3. Paux1. 
Type. ; 
Pauzi, Temm. Pig. et Gall. iii. p. 683(1815)........ P. galeata. 
Ouraz, Cuv. Régn. An. i. p. 440 (1817) .......... P. galeata. 
Lophocerus, Swains. Class. of B. ii. p. 353 (1837).... P. galeata. 
Uraz, Reichenb. Av. Syst. Nat. p. xxvi (1842)...... P. galeata. 
PAaUXI GALEATA. 
Crax pauxi, Linn. 8. N. i. p. 270. 
Pierre de Cayenne, Buff. Pl. Enl. 78. 
Crax galeata, Lath. Ind. Orn. ii. p. 624. 
Pauxi galeata, Temm. Pig. et Gall. iii. p. 1 et p. 683; Reichenb. 
Tauben, p. 137. 
Ourax pauxi, Cuv. Régn. Anim. 1817, i. p. 441; Bennett, Gard. 
& Men. ii. p. 65. 
Lophocerus galeatus, Swains. Classif. of B. ii. p. 353 et An. in 
Men. p. 184. 
Ourax galeata, Tsch. F. P. p. 289. 
Nigra @neo nitens: ventre imo et caude apice albis: pilei plumis 
brevibus, erectis: tuberculo frontali maximo, oviformi, caruleo : 
rostro rubro: pedibus carneis: loris dense plumosis: long. tota 
34, ale 16, caude, 13, tarsi 4. 
Fem. Rufescens, nigro undulata et vermiculata, capite undique 
nigro : tectricum alarium et secundariorum marginibus et caude 
apice albicantibus. 
Hab. Cayenne (Buffon) ; Rio Cassiquiari and Orinoco (Naét.) ; 
Venezuela, near Caraceas (Levraud in Mus. Paris). 
Mus. Brit., Paris. 
