«'. Middle tail-featliera inclined to 



be spatulate, niiich broader at 



the ends than in tlie middle. 



e''\ \o.«tiils thinly coTered with 



bristles, leavinir the base of 



the cnlmen unfeathered .... 19. Dexdrocitta, p. 75. 

 /'"'. Nostrils densely covered with 

 plu7iies which form a defined 

 crest of velvety feathers hiding 



the base of the culmen 20. Crypsirhixa, p. 83. 



A'". Eye surrounded by a fleshy wattle . . 21. Cissa, p. 84. 

 e". Head ornamented -n-ith a long crest 

 springing from the forehead and ex- 

 tending beyond the nape, the plumes 



long and widening at the tip 22. Calocitta, p. 88. 



d'. Tail moderately long and gTadiiated, the 

 two centre tail-feathers only slightly- 

 longer than the others. 

 /". Nostrils hidden by a dense tuft of bristles. 

 t'". Bill deep, compressed, the height at 

 the nostrils equal to the hind toe 

 (without claw). 



iK Tail graduated 23. Platysmurus, p. 90. 



^'. Tail-feathers square at tip 24. Temnubus *, p. 91. 



A' '". Bill moderately deep and compressed, 

 the height at the nostrils less than 

 the hind toe. 

 /'. Tail and wing about equal in length, 

 the dittereuce between them not 

 being more thau the length of the 

 hind toe (Avithout claw). 

 A\ Bill at nostrils about as high as 

 it is broad. 

 (f. Secondaries moderately long, 

 the distance between their 

 tips and the ends of the pri- 

 maries about equal to the cul- 

 men; second primary about as 

 long as the secondaries. 



a'. Culmen decurved 25. Gahrulus, p. 91. 



b''. Culmen nearly straight. ... 20. Perlsoreus, p. 103. 

 A". Secondaries very long, the dis- 

 tance between their tips and 

 the ends of the primaries not 

 equal to the culmen ; second 

 primary not equalling the se- 

 condaries in length. 

 c". Head with a long crest 

 (equalling or exceeding the 



culmen in length) 27. Cyanocitta, p. 106. 



(P. Head without a crest 28. Aphelocoma, p. 112. 



/■'. Bill at nostrils higher than it is 

 broad ; frontal plumes com- 



* Never having examined a skin of Temnurus, I place it next to Plafysmiirus, 

 with which it has always beau associated. 



