214 CORACINA 
at Gmezo, in Boranaland, south of Lake Stephanie, 
on May 24, 1905, during his journey from Shoa to British 
East Africa. 
Additional specimens must be obtained before this can 
be regarded as anything more than a variation or mutation. 
Genus III. CORACINA. 
Feathers of the middle and lower back, with hidden, strong, sharply 
pointed shafts; back uniform grey or blue, alike in both sexes; no part of 
the head bare. Bill black, rather wide and neither strongly hooked nor 
notched ; rictal-bristles obsolete. Wing long and pointed, slightly longer 
than the tail, which is rounded. Tarsi and feet blackish, the former rather 
short. Young distinguishable from adults by having some dark bars on 
the feathers. 
Type. 
Coracina, Vieill. Analyse, p. 37 (1816) . . . . . . C.papuensis. 
Graucalus, Cuv. Regne An. i. p. 341 (i817). . . . . C. papuensis. 
Ceblepyris, Cuv. t.c.p.348 . . C. cinerea. 
Ptiladela, Hombr. and ee Voy. Pole 5. ee ill. » ‘67, 
Gist) a 5 4 : C. boyert. 
Cyanograucalus, act, J. i 0. 1861, p. 170 . . . » CO. azured. 
The genus ranges over the tropical portion of the Eastern Hemisphere 
from West Africa eastward to New Guinea, Australia and Tasmania. It 
comprises over twenty species, of which six are confined to Africa, two to 
Madagascar and two to Great Comoro Island. 
KEY TO THE SPECIES. 
a. Hind neck darker than the mantle. 
a1. Breast grey. 
. Smaller, wing less than 4:5 inches; head and neck 
more dusky grey . . ME oh oo Cs 
Be Larger; head and neck pineeer er Se eas. Grae oie 
. Breast not grey. 
c%. Breast-pale.yellow 2.5 <3 % «2 ~~ Ge on moulplenaems 
d?. Breast white . . .. . .. cucullata. 
b. ne hind neck and pane Eanes Brey or bine, 
Breast and throat white. >... ... .+ =. =. + pectoralis. 
te Throat grey, breast white. . .. - .- =. + + + « grauert. 
