172 psittacid^:. 



/'". Deeper green underneath ; feet 



smaller brevipes, p. 191. 



ff'. Wings partly blue ; primary-coverts and 

 quills more or less blue. 

 e". No broad orange-red patch on the 

 forehead. 

 ff'", No yellow circle round the eyes; 

 cheeks green, 

 e*. Throat and upper breast dusky 

 brown ; small feathers between 

 the nostrils orange, but not always 



present nanus, p. 191. 



/*. Throat and upper breast olive, more 

 or less brown ; small orange 

 feathers between the nostrils more 

 developed and always present .... aztec, p. 192. 

 h'" . A yellow circle round the eyes, 

 broader below than above, in the 

 adult bird. 

 </ 4 . Yellow circle round the eyes very 

 narrow, pale, and scarcely visible 

 above ; lower breast and abdomen 

 uniform orange, more or less dull . cactorum, p. 194. 

 h*. Yellow circle round the' eyes more 

 orange and broader ; ear-coverts 

 brown, like the cheeks. 

 ff 5. Crown distinctly tinged with blue, (cruyinosus, p. 195. 

 h 5 . Crown green, scarcely tinged 



with blue ocularis, p. 197. 



»'". Forehead, sides of the head, and 



throat entirely yellow-orange jiertinax, p. 197. 



f". A broad orange-red or flame-colour 

 patch on the forehead, covering more 

 or less the anterior part of the crown. 

 k'". Inner webs of the quills olive, frontal 

 patch more extended and yellower ; 

 a yellow-orange circle round the eyes, aureus, p. 199. 

 I'". Inner webs of the quills blackish ; 

 frontal patch less extended and 

 redder ; no yellow circle round the 

 eyes canicularis, p. 201 . 



1. Connrus acuticaudatus. 



Maracana cabeza azulada, Azara, Apunt. Hist. Nat. Pawn/, i. p. 421, 



n. 278 (1802). 

 Maracana a, tete bleue, Azara, Voy. (ed. Sonn.) iii. p. 61 (1809). 

 Psittacus acuticaudatus, Vieill. N. D. xxv. p. 369 (1817) ; id. Enc. 



Mtth. iii. p. 1402 (1823). 

 Blue-crowned Maccaw, Lath. Gen. Hist. ii. p. 113 (1822). 

 Conurus acuticaudatus, G. R. Gr. Gen. B. ii. p. 413, n. 1 (partirn) 



(1845); Des Murs, Icon. Om. (text part.), pi. 31 (1846) ; Hartl. 



Ind. Azar. Apunt. p. 18 (svn. emend.) (1847) ; Sclat. Cat. Am. 



B. p. 347, n. 2069 (1862"); Finsch, Papag. i. p. 450 (1867); 



G. R. Gr. Hand-hst, ii. p. 146, n. 8094 (1870) ; Gieb. Thes. Om. 



i. p. 760 (1872); Finsch, P. Z. S. 1873, p. 570; Sclat. $ Salv. 



Nomencl. Av. Keotrop. p. Ill, n. 3(1873); Sclat. # Salv. P.Z.S. 



