1871.] ON NEOTROPICAL LARID.E. 507 



Genus 2. N^enia*, Boie. 



] . NiENIA XNCA. 



Sterna inca, Less. Zool. Voy. Coq. p. 731, t. 47 (1826). 



Anous inca, Gray, Gen. iii. p. GG 1 ; Pelz. Orn. Novara-Reise, p. 1 56. 



Ncenia inca, Bp. C. R. xlii. p. 773. 



Noddi inca, Gay, Cat. Aves Chil. p. 50. 



Inca mystacalis, Jard. Contr. Orn. 1850, p. 32. 



Larosterna inca, Blyth, Cat. Mus. As. Soc. p. 293 (1849). 



Hab. Coast of Peru (Less., Tsch.) ; coast of Chili (Ph. et Lundb.). 



Genus 3. Phaethusa, Wagler. 

 1. Phaethusa magnirostris. 



Hati cabeza negra, Azara, Apunt. iii. p. 373. 



Sterna magnirostris, Licht. Doubl. p. 81 (1823) ; Max. Beitr. iv. 

 p. 861 ; Hartl. Ind. Azar. p. 26 ; Spix, Av. Bras. ii. p. 81, t. 104 ; 

 Cab. in Schomb. Guian. iii. 761; Tsch. F. P. Aves, p. 305 ; Pelz. 

 Orn. Bras. p. 324 ; Burm. Syst. Ueb. iii. p. 450, et La Plata-Reise, 

 ii. p. 5r9 ; Scl. et Salv. P. Z. S. 1867, p. 593 et p. 979. 



Hab. Guiana (Schomb.) ; Lower Amazon (Wallace); Upper 

 x\mazon, Pebas (Hauxwell) ; rivers Huallaga and Ucayali (Bart- 

 lett); S. E. Brazil (Max. et Burm.); Rio Parana (Burnt.); Cuyaba 

 (Natt.) ; Paraguay (Azara) ; coast of Peru (Tsch.). 



Genus 4. Sterna, Linn. 

 1. Sterna maxima. 



La grande Hirondelle de Mer de Cayenne, Buff. PI. Enl. 988. 



Sterna maxima, Bodd. 



Sterna cayennensis, Gm. S. N. i. p. 608 ; Leotaud, Ois. de Trin. 

 p. 535. 



Sterna cay ana, Lath. Ind. Orn. ii. p. 804. 



Thalasseus cayanus, Gosse, B. Jam. p. 431. 



Sterna regia, Ganib. Proc. Ac. Nat. Sc. Phil. iv. 128; Baird, 

 B. N. A. 859. 



Thalasseus regius, Coues, Ibis, 1864, p. 388; Salviu, Ibis, 1866, 

 p. 198; Gundl. Repert. F. N. i. p. 392. 



Sterna erythrorhynchos, Max. Beitr. iv. 857; Tsch. F. P. Aves, 

 p. 305 ; Burm. Syst. Ueb. iii. p. 450. 



Hati coyote obscuro, Azara, Apunt. iii. p. 372 (?). 



Sterna chloripoda, Vieill. N. D. xxxii. p. 171, et E. M. p. 349? 



Hab. West Indies, Cuba (Gundl.) ; Jamaica (Gosse) ; S. Croix 

 (Newton) ; Trinidad (Leotaud) ; Pacific and Atlantic coasts of Gua- 

 temala (Salvin) ; coast of Cayenne (Buffon) ; coast of Brazil (Max. 

 et Natt.) ; Rio Parana (Azara) ; coast of Peru (Tsch.). 



Of this Tern Salvin has many specimens from the Guatemalan 

 coast, which have been compared by Mr. Coues with types of S. 

 regia of Gambel. We have also a series of skins of the same bird 



* Boic, Isis, 1849. p. 189,= Larosterna, Blyth, Cat. Mus. As. Soc. Calcutta, 

 p. 293 0849), = Inca, Jardine, Contr. Orn. 1850, p. 32. 



