124 



a, b. Ad. ; c. Imm. 



sk. 

 d-f. 2 ad. sk. 



g. 5 ad. sk. 

 h. (5 j uv. sk. 



i-l. PuU. sk. 



m. Juv. sk. 

 n. c? ad. sk. 



o,p. c? 2 ad. ; 17. 



Pull. sk. 

 r s. Ad. et imm. 



sk. 

 t-b'. c? ? ad. sk. 



c'-/..c??ad.;y. 



2 imm. sk. 

 h'-Jc'. (S ad. sk. 



I' . (5' imm. sk. 



m'. Ad. sk. 

 n'-q\ (5 § ad. sk. 



r'-t'. S ad. et 



imm. sk. 

 u' . Imm. sk. 



North America (Krider). 



Ipswicli, Massachusetts, June 



and Jidy {Dr. Brewer Sf 



C. J. Maynard). 

 Ipswich, Mass. (C. J. M.). 

 Nantucket, Mass. ( W. Breiu- 



ster). 

 Bone I., Virginia, July 



{Ridyivny) . 

 Bone I., Va., July [Ridgioay). 

 Cobb's I., Va., June (C. M. 



Jones). 

 Cobb's I., Va., Jidy (H. W. 



He7ishaic). 

 Caper's I., South Carolina, 



April {J. H. Batty). 

 Brownsville, Texas, May (F. 



B. Armstrong). 

 Corpus Christi, Texas, May 



{F. B. A.). 

 Antigua, Lesser Antilles, 



May (C. S. Winch). 

 Barbados, Sept. {H. W. F.). 



Venezuela. 



Loug Cay, Glover's Reef, 



Brit. Honduras, May (0. 



Salvin). 

 San Bias, Tepic Terr., April 



( W. B. Richardson). 

 Nagua River, Fantee, W. 



Africa, February 1871 



(Gov. Ussher). 



H. Saunders Coll. 

 H. Saunders Coll. 



Salvin-Godman Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 



H. Saunders Coll. 

 H. Saunders Coll. 



Salvin-Godmau Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Col. H. W. Feilden 



[P.]. 

 Dyson Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 

 H. Saunders Coll. 



30. Sterna superciliaris. 



Hati ceja blanca, Azara, Ajjiint. Bar. Parag. iii. p. 377 (1802). 



Hati manchado, id. toni. cit. p. 377 (juv.). 



Sterna superciliaris, Vieill. N. Diet. d'Hist. Nat. xxxii. p. 126 (1819 : 



based on the above "Hati ceja blanca"); id. Enc. Method. 1. 



p. 350 (1820) ; Stejih. in Shaw's Gen. Zool. xiii. pt. l,p. 149 (1825) ; 



Gray, Gen. B. iii. p. 659 (1846) ; <Se/. ^ Salv. P. Z. S. 1866, p. 200 



(Lower Ucayali) ; iid. op. cit. 1867, p. 593 (River Tocautins) ; 



iid. op. cit. 1871, p. 571 (revision) ; iid. op. cit. 1873, p. 310 



(E. Peru) ; iid. Nomencl. Av. Neotrop. p. 147 (1873) ; Reinh. Vid. 



Med. 1870, p. 19 (Brazil); Salvin, Ibis, 1874, p. 319; Coues, B. 



N.-West, p. 692 (1874: partim) ; Saimders, P. Z. S. 1876, p. 662 



(revision bterninse) ; Durnf. Ibis, 1877, p. 201 (La Plata) ; 



Salvin, Cat. Strickl. Coll. p. 625 (1882); White, P.Z.S. 1882, 



p. 628 (Parana); Tacz. Orn. Perou, iii. p. 444 (1886); Scl. l^ 



Hudson, Argent. Orn. ii. p. 197 (1888). 

 Sterna maculata, Vieill. N. Diet. d'Hist. Nat. xxxii. p. 176 (1819 : 



based on the " Hati manchado " of Azara) ; id. Enc. Method, i. 



p. 350 (1820) ; Gray, Gen. B. iii. p. 659 (1846). 

 Sterna argentea, Netaoied, Beitr. iv. p. 871. (1833) ; Less. Hist. N. 



Mamm. et Ois. ix. p. 520 (1837) ; Gray, Gen. B. iii. p. 659 (1846) ; 



