18/1.] ON NEOTROPICAL LARID/E. 5/3 



Onychoprion panaya, Gould, B. Austr. vii. pi. 33. 

 Sterna nubilosa, Sund. Ofv. af K. V. A. Forh. 1869, p. 589. 

 Haliplana discolor, Coues, Ibis, 1864, p. 392; Lawr. Ann. L. 

 N. Y. viii. p. 104 ; Elliot, Birds N. Am. ii. pi. 57. 



Hab. British Honduras (Salvin); West Indies, Sombrero (Allen). 



Genus 7. Hydrochelidon, Boie. 

 1. Hydrochelidon fissipes. 



Sterna fissipes, Linn. S. N. i. p. 228. 



Sterna plumbed, Wils. Am. Orn. vii. pi. 60 ; Pelz. Novara-Reise, 

 Orn. p. 155. 



Hydrochelidon plumbed, Baird, B. N. A. p. 864. 



Hydrochelidon fissipes, Coues, Ibis, 1864, p. 391; Gundl. Repert. 

 F. N. i. p. 393; Salv. Ibis, 1864, p. 385. 



Hab. West Indies, coast of Cuba (Gundl.) ; coast of British 

 Honduras (Salvin) ; Chili (Peheln). 



Subfam. III. Larin^e. 



Genus 1. Larus. 



Sect. a. Blasipus, Bruch*. 



1. Larus modestus. 



Larus modestus, Tsch. Wiegm. Arch. 1843, pt. 1, p. 389; F. P. 

 Aves, p. 53 et p. 306, t. 35 ; Pelz. Orn. Nov. Exp. p. 151; Ph. et 

 Landb. Cat. Av. Chil. p. 48. 



Ldrus bridgesi, Fraser, P. Z. S. 1845, p. 16, et Zool. Typ. t. 69. 



Blasipus bridgesi, Bp. Rev. Zool. 1855, p. 21, et Consp. ii. p. 212. 



Hab. Pacific coast of Peru, south of lAma. (Tsch.); Valparaiso 

 (Bridges) ; Chili (Segeth). 



Of this Gull we have seen only the specimens in the British Mu- 

 seum, one of which is the type of Fraser's L. bridgesi. It is cer- 

 tainly quite distinct from Larus fuliginosus, although more nearly 

 allied to it than to any other species. Mr. Fraser has already pointed 

 out the differences between them. Of these, the more slender bill 

 renders the present bird recognizable in every stage. Besides in the 

 adult L. fuliginosus there is a distinct black hood, which is entirely 

 wanting in L. modestus. 



2. Larus fuliginosus. 



Larus fuliginosus, Gould, Zool. Beagle, hi. p. 141; Sclat. et Salv. 

 P. Z. S. 1870, p. 323. 



Leucophceus fuliginosus, Bp. Consp. ii. p. 232. 

 Hab. Galapagos (Darwin, Habel). 



* This MS. generic name of Bonaparte was first published by Bruch (Joum. 

 f. Orn. 1853, p. 108), with L. modestus, Tsclmdi, for the type. Lawrence (B. N. 

 A. p. 848) gives 1852 as the date of the genus, but no reference ; Gray (List of 

 Gen. p. 130) does the same; but Bonaparte (Rev. Zool. 1855, p. 21) expressly 

 states that both this name and Leueoplupus of his MS. were first published bv 

 Bruch in 1853. 



