216 



VANELLTJS. 



\* Subgeneric group Vanelli .- with a hind toe and a spur, 

 f South-American Species. 



VANELLUS CAYENNENSIS, 



CAYENNE LAPWING. 



Diagnosis. Vajvellus halluce parvo : subalaribus albis : tectricibus splendide iridescentibus. 



Variations. 



Southern examples are so much greyer on the sides of the neck that they may fairly be 

 regarded as subspecificalfy distinct. 



Synonym.}-. 



Literature. 



Parra cayennensis, Gmelin, Syst. Nat. i. p. 706 (1788). 



Tringa cayennensis (GmeL), Latham, Index Orn. ii. p. 727 (1790). 



Vanellus cayennensis {GmeL), Vieillot, N. Diet. d'Hist. Nat. xsxv. p. 206 (1819). 



Cbaradrius cayennensis {GmeL), Lichtenstein, Verz. Doubt, p. 70 (1823). 



Charadrius lampronotus, Wagler, Syst. Av. p. 74 (1827) . 



Belonopterus cayennensis {GmeL), Bonap. Compt. Rend, xliii. p. 418 (1856). 



Plates . — Unfigured . 



Habits. — Gibson, Ibis, 1880, p. 161. 



Eggs. — Thienemann, Abbild. Vogeleiern, pi. lviii. fig. 7 ; Harting, Proc. Zool. Soc. 1874, p. 457. 



