and Psittacus dufresneanus. 369 



Psittacus dufresnianus had already been used by Shaw (Gen. 

 Zool. viii. 2, p. 513, 1811), whose description was made after 

 Levaillant's plate 91 ; and as this represents the Cayenne bird, 

 with no red on the head and on the tail, it is quite clear that 

 C. coeligena is equal to C. dufresniana (Shaw) and that a new 

 name must be given to the Brazilian C. dufresniana (Kuhl), 

 for which I would propose that of Chrysotis rhodocorytha. 



The synonymy, diagnostic description, and the habitat of 

 the two species will be as follows : — 



~^"1. Chrysotis dufresneana (Shaw). 



Le Perroquet Dufresne, Levaill. Hist. Nat. des Perr. ii. 

 p. 53, pi. 91 (1805) (ex Cayenna) . 



Psittacus dufresnianus, Shaw, Gen. Zool. viii. 2, p. 513 

 (1811) (ex Levaillant); Steph. Gen. Zool. xiv. p. 106 

 (1826) ; Desm. Diet. Sc. Nat. xxxix. p. 103 (part.) (1826) ; 

 Cuv. Regn. An. i. p. 465 (part.) (1829). 



Psittacus dufresnianus, junior, Kuhl, Consp. Psitt. p. 78 

 (1820). 



? Psittacus coronatus, Licht. (nee Linn.) in Mus. Berol. 

 fide Kuhl, /. c. 



Psittacus dufresnii, Kuhl, op. cit. p. 104 (1820). 



Psittacus dufresneanus, junior, Wagl. Mon. Psitt. p. 594 

 (1832) ; Hahn, Orn. Atl. Papag. p. 91 (young), t. 71 (1837) ; 

 Cab. in Schomb. Guiana, iii. p. 724 (1848). 



Chrysotis dufresnii, Sw. Class. B. ii. p. 301 (1837) ; Licht. 

 Nomencl. Av. p. 70 (part.) (1854). 



Chrysotis dufresneanus (part.), G. R. Gr. Gen. B. ii. p. 422, 

 no. 13 (1846). 



Chrysotis dufresniana (part.), Bp. Rev. et Mag. de Zool. 

 1854, p. 151, no. 100; ? G. R. Gr. List Psitt. Brit. Mus. 

 p. 80 (part.?) (1859) ; Pelz. Orn. Bras. p. 266 (note, part.) 

 (1871). 



Chrysotis dufresnianus, Bp. Naumannia, 1856, Consp. 

 Psitt. no. 94 (part.) ; ? G. R. Gr. Hand-list, ii. p. 164, no. 

 8323 (part.?) (1870). 



Amazona dufresniana, Schleg. Mus. P.-B. Psittaci, p. 52 

 (part.) (1864) ; id. op. cit. Revue, p. 27 (part.) (1874). 



SER. VI. VOL. II. 2 D 



