of the second; tail rather flat- 

 tened, the feathers concave only 

 towards the tip. 

 s''. Chin-angle exposed, no antrorse 

 bristles whatever ; crest mode- 

 rate ; tarsi not plumed down 

 the front. 

 {^. Bill very large and exceeding 

 the length of tlie head ; tail 

 long, being two thirds (or 

 more) the length of the 



-vvino- 42. Thripoxax, p. 497. 



j^. Bill shorter and not exceeding 

 the length of the head ; tail 

 less than two thirds the 



length of the wing 4-3. Ceophlceus, 



t^. Chin-angle with evident antrorse [p. 500. 



bristles, though not enough to 

 hide the angle ; upper part of 



tarsus feathered in front 44. Dryotomus, p. 514. 



m'. Chin-angle entirely hidden by 

 plumelets ; nostrils tliickly 

 covered ; fore part of tarsus 

 entirely clothed with feathers. . 4.5. Picus, p. 518. 

 , Tail soft and rounded, not spiny, 

 c'. Tail short, not measuring more than from 

 the middle of the quills to the carpal 

 joint, sometimes less ; nasal aperture 

 entirely concealed by dense bristles. . . 11. PICUMNINA^, 

 e". Orbital region entirely feathered. [p. 521. 

 i'". Smaller, length 3-2 inches, wing 2'05 ; 

 upper tail-coverts short and not 

 nearly i-eaching to the middle of the 

 tail ; bastard-primary short, ex- 

 tending very little beyond the tips of 

 the greater wing-coverts; bill stouter 

 and less curved and the tip not so 

 depressed ; outer posterior toe only 

 slightly longer than the outer ante- 

 rior toe 4G. PicuMNUS, p. 521. 



/". Larger, length 6 inches, wing 2'IJ ; 

 upper tail-coverts long and reaching 

 nearly to the middle of the tail ; 

 bastard-primary long, extending 

 considerably beyond the greater 

 wing-coverts ; bill more slender and 

 curved, the tip much depressed ; 

 outer posterior toe considerably 



longer than the outer anterior toe. . 47. Nesoctites, p. 552. 

 /". Orbital region naked. [p. 553. 



k'". With four toes 48. VERREAUxrA, 



I'". With three toes 49. Sasia, p. 554. 



(f . Tail long, equal in length to the longest 

 primary fi-om the base ; nasal aperture 

 not concealed by bristles, but partially 



hidden by a membrane '. III. lYNGIN^, p. 559. 



One genus only 50. Iynx, p. 559. 



