Order III. SCAXSORES. 
Family II. PsiTTACiDiE. 
The fifth Subfamily, 
CACATUINiE, or Cockatoos, 
have the Bill generally large, of various length, broad at the base, more or less compressed on the sides, 
and the culmen usually much arched to the tip, which is very acute ; the Wings generally rather long 
and pointed ; the Tail more or less long, broad, and mostly even ; the Tarsi short, robust, and covered 
with small scales ; the Toes unequal. 
MicROGLOssuM Geoffr.* 
Bill very large, much compressed on the sides ; the culmen much curved to the tip, which is lengthened 
and very acute, and the lateral margins of the upper mandible bidentated ; the lower mandible smaller, 
with the gonys broad, flattened, and much emarginated on each side near the tip ; the nostrils placed in 
the cere, which is covered with short erect feathers concealing the opening. Wings lengthened. Tail 
rather long and even. Tarsi very short, and covered with small scales. Toes covered with small 
scales, the two outer very long and nearly equal. The cheeks and the front of the throat denuded of 
feathers. 
The forests of New Guinea, and the islands'of Ceram, Banda, and "Waigiou, are the localities of the species of this 
genus. Their habits and manners have not been recorded by naturalists. 
1. M. aterrimurn (^Gme].) Wagl. Edwards's Birds, pi. 3l6. — 
Psittacus gigas Lath. ; P. griseus Bechst. ; P. Goliath Kuhl, Le 
Vaill. Perr. t. 1 1, 12, 13., Gal. des Ois. t. 50. 
2. M. Alecto (Temm.) Faun. Japon. p. 17. 
Cacatua Bi'iss.'f 
Bill strong, the sides compressed ; the culmen flattened, and curved to the tip, which is hooked and 
acute ; the lateral margins much festooned ; the gonys of the lower mandible broad, slightly rounded, 
keeled in the middle, and rather emarginated at the tip ; the nostrils placed in a narrow cere, large, 
and rounded. Wings long, with the second, third, and fourth quiUs nearly equal and longest. Tail 
rather short and even. Tarsi very short, and covered with small scales. Toes long, the outer ones the 
longest, covered with small irregular scales ; the claws long, strong, and curved. 
* Geoffroy established this genus in I8O9. Probosciger of Kuhl (1820), Solenoyhssus of Ranzini (1823), and Eurhynchus of Latreille 
(1825) are coequal. 
t It was in 176O that Brisson established this genus {Ornithologie, iv. p. 204.). Cuvier used in its place Kakatoe between 1799 and 
1800, and in 181 6 Vieillot proposed Plyctolophus for the same series of birds. 
