360 PSITTACID^. 



a. Ad. sk. S. America. Sclater Coll. 



b. Ad. sk. S. America. Purchased. 



c. d. $ J ad. sk. Bartica Grove, British Guiana, Salvin-Godman Coll. 



Jau., August (H. Whitely). 



e. J ad. sk. Camacusa, British Guiana, June Salvin-Godman Coll. 



(H. Whitely). 



f. 5 wL sk. Marabitanas, Brazil, March Salvin-Godman Coll. 



(Natterer). 



g. Ad. sk. Bio Negro ( Wallace). Sclater Coll. 



h, i. Ad. sk. Amazons ( Wallace). Salvin-Godman Coll. 



2. Caica pallida. 



Psittacus melanocephalus (part.), G. R. Gr. List Psitt. Brit. Mus. 



p. 73, spec, b (1859). 

 Caica melanocephala, Sclat. (nee Linn.) P. Z. S. 1858, p. 76 



(Eio Napo) ? ; Sclat. fy Salv. P. Z. S. 1867, p. 753 (Yurimaguas, 



Chyavetas), 1873, p. 301 (Chamicuros); iid. Nomencl. Av.Neotrop. 



p. 114, n. 7 (part.) (1873) ; Tacz. P. Z. 8. 1882, p. 46 ; Tacz. 8? 



Berl. P. Z. S. 1885, p. 109 (Canelos, Ecuador?) ; Tacz. Orn. Per. 



iii. p. 226, Tabl. p. 100 (1886) ; Garl. Journ.f. Orn. 1889, p. 291 ; 



Perl. Journ.f. Orn. 1889, p. 317. 

 Amazona melanocephala, Schleg. Mus. P.-B. Psittaci, p. 64, spec. 2, 3 



(1864). 

 Pionias melanocephalus (part.), Finsch, Papag. ii. p. 432 (1868). 

 Pceocephalus melanocephalus (part.), Rclmw. Joum. f. Orn. 1881, 



p. 382 (Coiisp. Psitt. p. 222). 

 Caica melanocephala pallida, Berl. Journ.f. Orn. 1889, p. 317. 



Similar to C. melanocephala , but with the thighs, flanks, and also 

 the under tail-coverts paler, lemon-yellow, with no orange tinge. 



Hob. E. Peru and E. Ecuador. 



As the differences pointed out by Graf von Berlepsch as dis- 

 tinctive of the birds from E. Pern and E. Ecuador seem constant, 

 I have been induced to regard them as belonging to a distinct 

 species. 



a. 2 ad. s k- Chamicuros, Upper Amazons, Gould Coll. 



November (Hauxwell). 

 h. Ad. sk. Sarayacu, Ecuador (Buckley). Sclater Coll. 



3. Caica leucogaster. 



Psittacus leucogaster, III. in Mus. Berol. ; Kithl, Consp. Psitt. p. 70 



(1820); Steph. Gen. Zool. xiv. p. 101 (1826); Less. Tr. d'Orn. 



p. 199 (1831) ; Bourj. Pen: pi. 58 (1837-38) ; G. P. Gr. List 



Psitt. Brit. Mus. p. 73 (1859) ; Finsch, Ned. Tijdschr. Dierk. i. 



Berigt. p. xv (1863) ; Pelz. Verh. z.-b. Ges. Wien, 1865, p. 925. 

 Pionus melanocephalus, part., Wagl. Mon. Psitt. p. 608 (av. homot.) 



(1832). 

 Psittacus badiceps, Lear, Parr. pi. 1 (1832) ; G. R. Gr. Gen. B. ii. 



p. 421, n. 16 (1846) ; Gulliv. P. Z. S. 1875, p. 489. 

 Psittacus melanocephalus, part., G. P. Gr. Gen. B. ii. p. 421, n. 15 



(1846). 

 Caica melanocephalus, part., Bp. Consp. Av. i. p. 5 (1850). 

 Caica leucogaster, Bp. Per. et May. de Zool. 1854, p. 151, n. 110; 



Souanee, Rev. et Mag. de Zool. 1856, p. 154 ; Bp. Naumannia, 



