372 . [June, 



Bill (in skin) pale yellowish white. 



Hab. South America. Brazil ? 



Ohs. Several specimens of this bird are in the Collection of the Academy, 

 variously labelled " Psittacus vernans ?" and " Aviazona lilacina Less." It is 

 not the latter species, and I have found no such name as the former. The ex- 

 tent of the space on the head occupied by both the crimson and bluish ash, 

 varies much in different specimens, and in one the latter is nearly obliterated. 



This species appears to have generally been con'ounded with C avUimnalis, 

 (Linn.) which it very considerably resembles. It is, however, invariably 

 smaller, and has no yellow markings whatever on the face. The bill is clear 

 yellowish white, with no tinge of brown or horn color, as in that species. 



2. PsiTTACULA LINEOLA, 7lobis, 



Form. Small ; size of P. passerina (Linn.) Wings with the first and second 

 quills longest and nearly equal; tail feathers pointed, the two central feathers 

 longest, iicuminated; bill tumid ; tarsi and feet strong. 



Dimensions. Total leng;th (of skin) from tip of bill to end of tail about 6 

 inches ; wing 4 ; tail Si inches. 



Colors. Shoulders black. Entire plumage above and below green, slightly 

 tinged with brownish on the back, and with yellow^ on the under parts, rump, 

 upper and under tail coverts, most obvious on the latter. Eveiy feather of the 

 entire plumage except the quills and tail narrowly tipped with black, nearly ob- 

 solete on the middle of the breast and abdomen, but very conspicuous on the 

 head, neck, back, rump, coverts of the wing and tail, sides and flanks, and as- 

 suming the character of rounded terminal spots on the upper and under coverts 

 of the tail. 



Quills green on their outer w^ebs, brownish black on their inner webs, tinged 

 with green and paler on their inner margins ; tail feathers green, the two central 

 feathers with a line of brownish black along their shafts and tipped with the 

 same color ; other tail feathers also brownish black along their shafts and on 

 their inner margins. Bill, tarsi and feet light colored. 



Hab. Mexico, National bridge. 



Obs. This little Parrot does not appear to be nearly related to any other spe- 

 cies, and at first sight bears a greater resemblance to some of the small Austra- 

 lian species than to any which are American. Two specimens are in the collec- 

 tion, one brought by Mr. Pease from the vicinity of the National bridge, and the 

 other collected by Mr. Bruzin, also in Mexico. 



3. Ara auricollis, nobis. 



Form. Rather smaller than Ara severa (Linn.) Bill abruptly curved: culmen 

 flattened, bare space commencing at the nostril, including the eye and com- 

 pletely enclosing the under mandible. Wing rather long, second and third quills 

 longest and nearly equal ; tail graduated, containing twelve feathers. 



Dimensions, Total length (of skin) from tip of bill to end of tail about 15 

 inches ; wing 81 ; tail 82 inches. 



Colors. A large spot of yellow on the back of the neck, somewhat rectangu- 

 lar in shape, and extending slightly on to the sides of the neck at its lower edge. 



Head above, from the base of the bill to the crown, black, which is also the 

 color of the cheeks immediately next to the bare space. Occiput, and all other 

 parts of the plumage, except the win^s and tail, green, tinged with yellowish on 

 the back and wing coverts, and very slightly with bluish on the occiput. Pri- 

 maries and secondaries light blue ; tertiaries same yellowish green as other 

 plumage. 



Tail, with the two central feathers above, reddish chesnut or maroon for the 

 greater part of their length, yellowish green at base, and towards the end sub- 

 terminally light blue and narrowly tipped WMth yellow ! other feathers of the tail 

 much the same, but with the light blue predominating on their outer webs and 

 yellowish green on the inner webs. Under surfaces of wings and tail pale silky 

 yellow. 



Ilab. South America, Bolivia. 



Obs. Peculiarly characterized by the large yellow space on the back of the 



