et 



?•", s'\ Ad. et juv. 



sk. 

 t"-w". Ad. et inim 



sk. 

 .t", y". Ad 



imm. sk. 

 z\ 2 ad. sk. 



a'. Ad. sk. 



6". Iiiini. sk. 



c", fr,e". SkeletoDS. 

 /'. Bones of trunk. 

 (/\ ykull. 

 A". Skull. 

 r. Sternum, 

 /r. Sternum. 



10. NYCTICORAX. 



Choctum, Guatemala (O. 

 Saloin). 



St. Vincent, West Indies, 

 Sept. (/;. JV. Smifk). 



Grenada, W. I., June, July 

 (1). ir. Smith). 



Medellin, U.S.Colombia (T. 

 A'. Salmon). 



Balzar Mountains, Ecuador 

 (^Illiny worth ). 



Saravficu, Ecuador (C. Buck- 

 ley). 



Nepal. 



Wiirtemberg. 



Algeria. 



Jamaica. 



T55 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Purchased. 

 Il.xltrson Coll. 

 Yarrell Coll. 

 Dr. GUnther [C.]. 

 M. Lefebvre. 

 Gosse Coll. 



2. Nycticorax tayazu-gnira. 



Garza parda cliorreada, Azairr, Apunt. iii. p. 168 (1803). 



Garza tayazu-guira, Azara, t. c. p. 173. 



Ardea tayazu-guira, Vieill. N. Diet. cVHist. Nat. xiv. p. 417 (1817). 



P Ardea nveticorax, Neuwied, Beitr. Natury. Bras. iv. Abth. 2, 

 p. 646 (1833). 



Nveticorax gardeni (pt.), Gray, List Grail. Brit. 3Itis. p. 85 (1844). 



Nveticorax americanus {7iec Bp.}, Tschudi ^- Cab. Faun. Peruan., 

 'a ves, pp. 50, 297 (1845-46) ; Hartl. Ind. Azara, pp. 22, 23 (1847) ; 

 Tttcz. P. Z. S. 1874, p. 555 (Junin). 



Ardea ffardeni {7iec Gm.), Burm. Th. i?rfls. iii. p. 405 (1856); id. 

 ReiseLa Plata-St. ii. p. 508 (1861 : Parana). 



Nveticorax gardeni (nee Gm.), Sel. P. Z. >S. 1860, p. 386 (Berkeley 

 Sound); Abbott, Ibi.% 1861, p. 157 (Falkland Is.); Pelz. Om. 

 Bras. p. 303 (1871 : Sapitiba ; Ypanema ; Rio de Janeiro ; Cury- 

 tiba ; Irisanga ; Cuyaba ; Cai9ara) ; Tacz. P. Z. S. 1877, p. 329 

 (Peru); Barro2Us, Aiik, i. -p. 271 (1884: Lower Uruguay); Tacz. 

 Orn. Perou, iii. p. 407 (1886 : Junin ; Tumbez). 



Nycticorax obscurus (nee Licht.), Scl. Ibis, 1861, p. 312 ; id. P. Z. S. 

 '1864, p. 73 (Falkland Is.) ; Scl. ^- Salv. Ibis, 1869, p. 284 (Tyssen 

 Isl., Falkland Sound) ; Durnf. Ibis, 1877, p. 40 (Chuput Valley), 

 p. 189 (Buenos Avres), 1878, p. 63 (Buenos Ayres), p. 399 

 (Sengel) ; Scl. ^- Salv. P. Z. S. 1878, p. 436 (Falkland Is.) ; Scl. 

 P. Z. S. 1879, p. 310 (eggs: Falklands) ; Gibson, Ibis, 1880, 

 pp. 156, 168 (Cape San Antonio, breeding) ; White, P. Z. S. 

 1882, p. 624 (Buenos AvTes: Salta) ; Tacz. Orn. Perou, iii. p. 406 

 (1886: Lake Titicaca) ; Withington, Ibis, 1888, p. 471 (Lomas de 

 Zamora); Scl. ^- Buds. Arg. Orn. ii. p. 105 (1889); Holland, Ibis, 



1890, p. 425, 1892, p. 205 (Estancia Espartilla) ; Scl. P. Z. S. 



1891, p. 136 (Sacaya ; Tarapaca). 



Adult. Similar to iV. nycticorax, but larger, and having the entire 

 under surface pervaded with grey except on the throat, lower 

 abdomen, and vent, which are Avhite ; forehead and eyebrow also 

 white : " upper mandible and tip of lower one black, remainder of 

 lower mandible yellowish green ; feet light pea-green, underside 



