( XXV ) 



GLOSSARY 



TECHNICAL TERMS. 



Bill compressed. — When the bill is narrowed, by the mandibles being 



pressed m laterally. PI. 3. Fig. 1. 

 cultrated When each mandible is shaped like a ploughshare, with 



sharp edges. PL 1. Fig. 8. 

 subulated When the bill is long and slender, and shaped like an 



awl. PI. 3. Fig. 9. 



conical — PI. 4. Fig. 1. 



subconic. — Approaching to the conical form. PI. 3. Fig. 10. 



depressed. — When the bill is flattened, by the mandibles being 



pressed perpendicularly. PI. 3. Fig. 4. 

 culminated. — ^When the central ridge of the upper mandible is very 



prominent. PI. 1. Fig. 17. 



quadrangular Of a square form. PI. 2. Fig. 4. 



subquadrangular. — Approaching to a square form. PL 2. Fig. 5. 



carinated. — When either mandible has a prominent ridge or keel. 



PL 1. Fig. 13. 



inflated. — When the sides of the mandibles bulge out. PL 3. Fig. 13. 



emarginated — When either mandible is slightly notched towards the 



extremity. PL 3. Fig. 2. 

 deflected — When the upper mandible is rather bent downwards to 



the point. PL 4. Fig. 3. 

 Cere. — The naked skin at the base of the bill, in which the nostrils are 



situated in certam genera. PL 1. Figs. 1, 2, 3, &c. a. 

 Claws retractile Capable of being drawn back into a sheath, as in the 



Falcon tribe. 



Culmen The central ridge of the bill. 



Feathers elongated — Lengthened, as in the crests of certain birds, 

 acuminated.— Drawn to a fine point, as in the neck feathers of 



the Eagles. 

 VOL. I. C 



