Vlll 



GLOSSARY OF TEJIMS. 



Mandible. — Term properly applied ouly to the lower 

 jaw (b) ; but the maxilla, or upper jaw (a), is often 

 called the upper mandible. 



Maxilla. — The upper jaw (a). 



Membrane, Interdigital. — The web between the toes, 

 wliich in land birds is usually entirely absent, or but 

 sUghtly marked. 



Nares. — The nostrils. 



Nasal Sheath. — Bare skin covering the base of the bill and 

 nostrils, especially marked in the Hawks. 



Pectinate. — Comb-like. 



Primaries. — The gi-eat flight-feathers of the wing. 



Rectrices. — The quill-feathers of the tail. 



Remigies. — The chief feathers of flight of the wing. They 

 are divided into primaries, secondaries, and tertiai-ies. 



Reticulated. — Of a net-like aspect. 



Scapulars. — Feathers of the shoulder region, which cover 

 the side of the back. 



Scutell^. — The Irorny plates on the anterior aspect of the 

 tarsus. 



Secondaries. — The secondary flight-feathers of the wing. 



Spatulate. — Spoon-shaped. 



Symphysis. — A grooving together or joining of one bone with 

 another. 



Tarsus (pliu-al Tarsi). — The leg bone immediately above 



the foot. 

 Tridactyle. — "Three-lingered, or composed of three movable 



parts attached to a common base." — Darwin. 



Uropygium. — The region of and behind the vent. 



Webs (outer;. — The feathering or webbing of any of the 

 tail- or flight-feathers on the side away from the 

 median line of the body. 



Webs (inner). — The feathering or webbing of any of the 

 tail- or flight-feathers on the side nearest the median 

 line of the body. 



