CH UUIJKIID.K. 



145 



Subfamily IV. CHARADRIIN/E. 



Key to the Genera. 



a. With a large spur on the wing ; with a large [p. 146. 



facial lappet 12. Xiphidiopterus, 



(>. With no spur on the wing, but a facial 

 wattle present. 

 a'. With a hind toe. 

 a". Tarsus long, more than twice the length 

 of the middle toe and claw ; bare 

 portion of tibia equal to length of [p. 148. 



middle toe and claw 13. Sarcogrammus, 



b". Tarsus shorter and stouter, not twice 

 the length of the middle toe and claw ; 

 tibia feathered almost to the tarso- 



^ metatarsal joint 14. Tylibyx, p. 153. 



b ' . Without a hind toe. 



c". Inner secondaries reaching nearly to 

 the ends of the primaries ; tibia 

 densely feathered almost to the tarso- 

 metatarsal joint 15. Zonifer, p. 154. 



d" . Inner secondaries shorter than pri- 

 maries, the distance between them 

 being greater than the length of the 

 middle toe and claw ; tibia naked, the 

 bare part more than half the length [p. 156. 



of the tarsus 16. Anomalopiirys, 



r. With a visible spur on the wing, but no 



facial wattle. [p. 157. 



c'. Wing-spur black, very long and sharp . . 17. Hoplopterus, 

 </'. Wing-spur yellow, large and blunt; a 



long civst of recurved slender feathers . . 18. Belonopterus, 

 '/. With no spur and no facial wattle. [p. 163. 



ft. Inner secondaries broad and with the tips 

 rounded ; the distance from the shortest 

 secondary to the tip of the primaries not 

 equal to half the length of the wing. 

 e". With a recurved crest of long pointed 



plumes 19. Vanellus, p. 166. 



f". No crest. 



a'". Hind toe present. 



a*. Tarsus very long, twice the length [p. 171. 



of the middle toe and claw 20. Eurypteris, 



b l . Tarsus much shorter, not twice 

 the length of the middle toe and 



• claw 21. Chjetusia, p. 174. 



I'"'. No hind toe 22. Stepuanibyx, 



/'. Inner secondaries very long and pointed, [p. 177. 



tin' distance from the shortest secondary 

 to llw tip of the primaries more than 

 halt' the length of the wing. 

 ff". A black throat or breast in summer 

 plumage ; upper plumage spangled 

 ( with gold, or with black and white. [p. 182. 



A hind too present 23. Sqi'atarola, 



'' ■ No hind too 24. Charadiuts, 



[p. 191. 



VOL. XXIV. L 



