5. JACANA. 



81 



2. Hydralector novae-guineae. 



Parra gallinacea (nee T.), D' Albert. P. Z. S. 1875, p. 30 ; id. Ann. 



Mus. Genov. viii. p. 799 (1875). 

 Parra cristata (nee V.), Sharpe, Journ. Linn. Soc., Zool. xii. p. 505 



(1877 : Laloke River). 

 Parra novae-guineas, Ramsay, Proe. Linn. Soc. N.S. W. iii. p. 298 



(1878 : Port Moresby), iv. p. 102 (1879) ; Salvad. Ibis, 1879, p. 327. 

 Hydralector gallinaceus (nee 71), Salvad. Orn. Papuasia etc. iii. 



p. 308 (1882). 



Adult. Similar to II. gallinaceus, but darker and more olive-green 

 above, without the bronzy shade ; the blue-black colour of the 

 hind-neck overspreading not only the mantle but the upper back as 

 well ; the wing-coverts sooty black, nearly as dark as the breast. 

 Total length 7*8 inches, culmen with frontal lappet 1*7, wing 5, 

 tail 1-135, tarsus 2'1, middle toe and claw 3*1. 



According to Mr. Ramsay, the female is one fifth larger than the 

 male. 



Young birds differ in the same way as in H. gallinaceus, being 

 white underneath with a rufous head. 



Hab. New Guinea. 



a, b. Ad. et juv. 



Port Moresby. 



A. Goldie [C.]. 



5. JACANA. 



Type. 



Parra, Linn. Syst. Nat. i. p. 259 (1766, pt.) J. jacana. 



Jacana, Schaffer, Elem. Orn. fol. 2 B, pi. vii. figs. 1, 2 (1774 : 



ex Briss.) J. jacana. 



(Cf. Stejneger, Auk, ii. p. 338, 1885.) 



mm 



Fig. 9.— Ilead of Jacana Jacana, to show form of lappet and facial wattles. 



Range. The greater part of South America, north of Patagonia 

 and Chili, extending into Panama. 



VOL. XXJV. q 



