1870.] MESSRS. SCLATER AND SALVIN ON THE CRACID&. 533 
In one of our skins of this species from the Rio Negro (Natt.), 
the three outer pairs of rectrices are wholly chestnut down to the 
base ; in a second (from Demerara) there are traces of bronzy green 
at the base. 
2. ORTALIDA ARAUCUAN. 
Penelope aracuan, Spix, Av. Bras. ii. t. 74. 
Penelope araucuan, Spix, Av. Bras. ii. p. 56; Wagl. Isis, 1830, 
p- 1112. 
Ortalida araucuan, Wagl. Isis, 1832, p. 1227; G. R. Gray, List 
of Gall. p. 11. 
Ortalida superciliaris, Pelzeln, Orn. Bras. p. 285. 
Supra eneo-fusca unicolor, pileo parum obscuriore: subtus saturate 
grisea, ventro medio dilutiore: rectricibus quatuor mediis eneis, 
ceteris castaneis, ad basin eneis : rostro plumbeo, apice flavicante, 
pedibus plumbeis : long. tota 16°5, ale 7, caude@ 8, tarsi 1-9. 
Hab. Lower Amazonia, prov. Maranham (Spiz) ; vicinity of Para 
(Natterer). 
Mus. Brit., Vindob., S.-G. 
Obs. Similis preecedenti, sed crassitie minore et pileo obscuro nec 
rufo facile distinguenda. 
This Ortalida must be carefully distinguished from O. albiventris 
of S.E. Brazil—a very different species, which has been called O. 
araucuan by Max. and Burmeister. O. albiventris is a larger 
bird, and has the head and uropygium bright rufous, and the belly 
white. 
Natterer obtained examples of this bird at Para, the Rio Muria, 
and Praia de Cajutaba. One of these is now in Salvin and Godman’s 
collection. This species is probably the representative of O. motmot 
on the south bank of the Amazons. 
3. ORTALIDA RUFICEPS, 
Penelope ruficeps, Wagl. Isis, 1830, p. 111. 
Ortalida ruficeps, Wag]. Isis, 1832, p. 1227. 
Pileo ac nucha rufis: noteo toto olivaceo-fusco: pectore griseo- 
olivaceo: gastreo griseo: cristo fuscescente : rectricibus duabus 
mediis eneo-fuscis, sequente concolori, apice rufescente: reliquis 
prima medietate et ultra e@neo-fuscis: dein cinnamomeo-rufis. 
Adult. long. tota 16°25, caude 7°8. 
Hab. Brazil. 
Mus. Berol. 
Obs. Similis P. motmot et P. albiventris : a prima statura minore, 
caudze pictura &c., ab altera uropygii, pectoris, caude colore, statura 
minore &c., satis distincta. (Wagler.) 
We have no examples of this Ortalida ; but Sclater has examined 
the type in the Berlin Museum, and believes it to be a good species. 
We have copied Wagler’s description of it. It appears to be most 
like O. motmot, but is much smaller, and has the basal portion of 
the outer tail-feathers eeneous. 
