iiig. 144. 



X^9 



DiAQEA-Si OP A BrsD, to illustrate the terminology of the plumage 

 and limbs (after Oates). 



Forehead. 2. Crown or Tertex. 3. Nape. Between this and z is the 

 hind-head, or occiput. 4. Lore (space in front of the eye). 5. Super- 

 cilium. (The space around the eye is the " orbital " or " oireumooular 

 region " and is subdivided into supra-orbital, infra-orbital, ante-orbital, 

 and post-orbital). 6. Cheek or gena ; its lower margin is the malar 

 region. 7. Auriculars or ear-coverts. 8. Upper mandible or maxilla, 

 g. Lower, or true, mandible. 10. Culmen, or upper profile of maxilla. 

 1 1 . Bictus, or commissural line of junction(or gape) of the two mandibles. 

 The extreme posterior end of the gape is the corner or angle of the 

 mouth, or commissural point. The space between this and the base of 

 the horny bill is the rictus. 12. Kiotal bristles or vibrissse. 13. Chin 

 or mentum. 14. The throat — divisible into "upper throat" (gula) 

 and "lower throat" (jugulum), which extends down to 15, where 

 begins the prepeotus, or fore-neck, after which comes the breast or 

 pectus — that is the part which covers the breast-bone or sternuui. 

 16. Abdomen. (The breast and abdomen together are called " gas- 

 traeum.") 17. Back — the upper part of which is the interscapular 

 region. 18. Eump or uropygium. ig. Scapulars, zo. Primaries 

 (the outermost 9 or 10 quills of the wing springing from the pinion or 

 bones of the hand). 21. Secondaries (wing-quiUs springing from the 

 lower arm-bones — radius and ulna). 22. Tertiaries (springing from 

 the upper arm-bone or humerus). — The primaries, secondaries, and 

 tertiaries together constitute the " remiges.'' 23. Lesser wing-coverts. 

 24. Median wing-ooverta. 25. Greater wing-coverts. 26. Primary 

 wing-coverts. 27. Winglet or bastard wing or alula (feathers spring- 

 ing from the thumb). 28. Tipper tail-coverts. 29. Tail-feathers or 

 reotrices. 30. Under tail-coverts. 31. Tarsus. 32. Hind toe or first 

 toe or hallux. 33. Inner or second toe. 34. Middle or third toe. 

 35. Outer or fourth toe. 



