ILLUSTRATIONS OF .ORNITHOLOGY. 
CYANOCORAX NANUS, Dubus.? 
Cyanocorax nanus, Dubus, in Bulletin Acad. Roy. de Bruxelles, 
Revue Zoologique, 1848, p. 243. 
The Mexican bird above described by Vicomte Dubus, agrees in 
every respect with the specimen here figured, except as regards 
his expression, <£ gutture alboccerulescente ; ” while in my bird the 
throat is deep blue-black. Should it prove to be distinct, I would 
propose for it the name of Cyanocorax pumilo. 
This elegant little bird is about the size of Turdus musicus, and 
is probably the smallest species, not only of its genus, but of the 
whole family of Corvidae. But small as it is, the curved culmen of 
the beak agrees rather with that of the robust blue crows (Cyano- 
corax ) of South America, than with the slender formed blue jays, 
(Cyanocitta ) of Mexico and North America. 
Plumage deep indigo-blue, brightening into Prussian blue on 
the crown, hind neck and upper breast, and passing into blue- 
black on the throat and chin ; front, lores, and ear-covers, deep 
•black; a narrow line of bluish-white feathers extends across the 
front and over each eye to the temples; remiges and rectnces 
black on the under sides ; beak and feet, black. 
' Total length, 9.2; beak to front, 8}; to gape, i; height, 3; 
breadth, 3^ ; wing, 4.5; medial rectrices, 4.5; external, 3.8 , tar 
sus, i.2. 
I received this rare and beautiful species from Guatima a. 
H. E. Strickland. 
122-23 
