156 
AYES. 
Figure II. 
The Cere— (cera, Linn.) — the naked skin which covers the 
base of the bill, 1. 
The Orbits— forbita, Linn.) — the skin which surrounds the 
eye. It is generally bare, as in Parrots and the He¬ 
ron, &c. 2. 
A Notched Mandible, 3. 
Figure III. 
According to the new nomenclature, the principal parts of 
Birds are eight, as follow:— 
I. The Rostrum, r 
bill or beak, ! 
which is divid- i 
ed iuto 3 parts. 
1. Maxilla, upper part, or mandible of the bill, fig. 
III. a. 
2. Mandibula, the lower mandible, b. 
3. Gongs , point of the Mandibula, c. 
The beak is again subdivided into 5 parts. 
1. Nares, the nostrils, fig. II. a. 
I 2. Dertrum, the hook, fig. II. b. 
j 3. Cubnen , the ridge, fig. IV• b. 
J 4. Mesorhinium , the upper ridge, d. 
5. Cera, the wax or cere on the bill, fig. II. 
1. and fig. IV. c. 
II. Caput, the 
head, which is 
divided into 18 
parts. 
- 1. Lorum, the naked line at the base of the bill, fig. III. d. 
2. Lingua, the tongue. 
3. Frons, the forehead, fig. III. e. fig. II. c. 
4. Capistrum, the face, fig. I. a. 
5. Sinciput, the hinder part of the head, fig. 111./; 
6. Corona, the crown of the head, fig- III. g. 
7. Regio Opthabnica, region of the eyes, h. 
8. Oculus, the eye. 
9. Orbitce, the orbits or centre of the eyes. 
< 10. Tetnpora, the temples, i. 
11. Supercilium, the eye-brows, j. 
12. Gena, the cheek, k. 
13. Crista , the crest, fig. II. d. 
14. Cornua, the horns, as exemplified in the horned 
owls, consisting of upright bunches of feathers. 
15. Barba, the beard, fig. III. 1. 
16. Mentum, the chin, m. 
17. Aures, the ears, n. 
^ 18. Regio parotica, the protuberance behind the ear, o. 
