59 



ornamental nape - plumes 

 numerous, lanceolate, but 

 not reaching; beyond the 

 hind-neck, 

 e*. Fore part of cheeks 

 feathered ; ornamental 

 dorsal plumes lanceo- 

 late ; plumage streaked 



or spotted 



/ - . Fore part of cheeks bare ; 



no ornamental dorsal 



plumes; plumage barred. 



f^. Tarsus transversely scaled in 



front ; crest-plumes full and 



rounded at their ends 



P. Throat feathered in the centre, 



but bare at the sides 



m'. Throat entirely bare 



i^. Bill equal to middle toe and claw ; 

 neck-frill very full, but without 

 long ornamental plumes ; no dor- 

 sal train 



k^. Bill equal to middle toe and claw ; 



long ornamental nape-plumes ; 



dorsal train well developed .... 



I*. Bill shorter than middle toe and claw 



21, 



23. 



26. 



BUTOEIDKS, p. 172. 

 TiGROENIS, p. 191. 



ZoNEEODirs, p. 192; 

 [p. 198. 

 Heterocnus, 



TiGEISOMA, p. 193. 



[p. 20a; 

 Erythrocnus, 



Ardeola, p. 201. 

 BuBULCus, p. 213. 



29. Ardetta, p. 220. 



. Tail-feathers 10 : bill serrated. 

 c'. Middle toe and claw about equal in length 

 to the tarsus. 

 e" . Ti bio-tarsus feathered right down to 

 the tarsal joint or heel. 

 e^. Crest pointed, but no frill hiding 

 the bare neck ; the area behind the 



eye feathered 



y. Crest very full, in fact enormous, 

 and entirely hiding the bare neck ; 

 plumage waved : a bare patch be- 

 hind the eye 30. Zebeilus, p. 241, 



/". Tibio-tai\sus bare for some little dis- 

 tance before the heel. 

 g^. Bill vei-y short and thick, the cul- 

 men equal to the tarsus, which 

 again is equal to the middle toe. 

 m^. Wing more pointed, secondaries 



much shorter than the primaries. 31. Nannocnus, p. 242'. 

 «*. Wing rounded, secondaries equal 

 to or longer than the primaries. . 32. 

 h^. Bill much longer, exceeding the 

 length of the tarsus as well as that 

 of the middle toe and claw, which 

 are equal in length to the tarsus . . 33. 

 d'. Tarsus far exceeding middle toe and claw 34. 

 c'. Middle toe and claw fiir exceeding length 

 of tarsus ; bill serrated : culmen about 

 equal to inner toe with claw ; hind claw 

 very long, nearly equal to the hallux in 

 length 35. BoxArRrs, p. 253, 



Ardeirallus, 



[p. 244. 



DuPETOR, p. 246. 

 Erythrophoyx, 



[p. 252.- 



