( XXV ) 



GLOSSARY 



OF 



TECHNICAL TERMS. 



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



pressed in 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. PL 4. Fig. 1. 



subconic Approaching to the conical form. PL 3. Fig. 10. 



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



pressed perpendicularly. PL 3. Fig. 4. 

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



prominent. PL 1. Fig. 17. 



quadrangular. Of a square form. PL 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 certain 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. 

 acuminatedDrawn to a fine point, as in the neck feathers of 



the Eagles. 

 VOL. I. C 



