a. Pull.sk. 



b-d. S 2 ad. ; e. 



d juv. ; f,ff. 



cJ pull. sk. 

 h. cS imiii. sk. 

 /. Ad. sk. 

 /^-<. c^ 2 ad. et 



vix ad. sk. 

 It, V. 2 imm. sk. 



to. 2 iniiu. sk. 



.f. Imm. sk. 



y-z, a'-d'. Imm. 



.sk. 

 e'-i'. (S 2 iinni- ; 



A"'. 2 j"'^- sk. 

 /'. Skeleton. 



12. RUYNCHOP.'^. 



Cobb's I., Virginia, July 2 



( ^'. Brewster). 

 Cobb's I., Va., Aug. 1 {Hen- 



shuw). 



Georgia, April (W. Brewster). 

 Florida (C. J. Maynurd). 

 Corpus Christi Pass, Texas, 



May [F. B. Armstrong). 

 Tanipico, Mexico, Feb. ( W. B. 



liichardson). 

 Rio Lagartos, N. Yucatan, 



June (6^. F. Gaunier). 

 Progreso, N. Yucatan, June 



{G.F. G.). 

 Cozumel I., Yucatan, Feb. 



{G. F. G.). 

 Acapam, Pacific coast, Jan. 



i9, 186;i (O. Salrm). 

 N. America. 



155 



II. Saunders Coll. 

 Salviu-Godman Coll. 



II. Saunders Coll. 

 H. Saunders Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



T. C. Eyton Coll. 



2. Rhynchops intercedens. 



Rayador, Azara, Apnnt. iii. p. ."529 (lb02: Paraguay). 



Rhj'nchops nigra (wee L.), Ketiwied, Bcitr. Naiury. Bras. iv. p. 877 



(1833: Espirito Santo, South Brazil) ; Darwin, Voi/. 'Beagle,'' iii. 



p. 161 (1839: Uruguay Coast) ; Goidd, in Voy. 'Beagle^ Birds, p. 143 



(1841) : Hartl. Ltd' Azara, p. 26 (1847); Burm. Th. Bras. iii. 



p. 454 (1856 : Coast) ; id. Reis. La Plata, ii. p. 520 (1861 : Parana) ; 



Scl. ^ Salv. P. Z. S. 1871, p. 566 (revision Neotrop., partim) ; iid. 



Nomencl. Av. Neotrop. p. 147 (1873: partim); Pclz. Orn. Bras. 



p. 324 & p. 461 (1871 : partim); Berlepsch, J. f. O. 1874, p. 279 



(Sta. Catbarina, S. Brazil) ; Durnford, Ibis, 1877, p. 200 (Buenos 



Ayres) ; White, P. Z. S. 1882, p. 628 (Buenos Avres) ; Berlepsch, 



J.f. 0. 1887, p. 37 & p. 126 (Paraguay). 

 Rhynchops melanura, Scl. Sf- Huds. Argent. Oin. ii. p. 193 (1889). 

 Rhynchops intercedens, Saunders, Bull. Br. Orn. Club, no. xxv. 



p. xxvi (Mar. 1895). 



Adult female. Similar to the female of the preceding species, 

 with quite as much white on the wing and under-coverts ; differs 

 in having the tail-feathers merely bordered with white to the width 

 of 0"lo inch on the outer webs, the greater part of the remainder 

 brown on both sides of the shafts, and the middle rectriccs almost 

 wholly umber-brown ; undersides of tail-feathers white, with a 

 brown tinge at the tips. Total length Kr5 inches, culmen 2-65, 

 genys 2-8, wing 14, tail 5. tar.sus 1-1. middle toe with claw 1"1. 



Acarhj adult male. Similar, but with a browner tint and rather 

 more white on the terminal portions of the four upper jirimaries ; 

 larger. Length 19 inches, culmen 4, genys 4-9, wing 16, tail 6, 

 tarsus 1-45, middle toe with claw P3. 



Imnuitnre. Similar, but the feathers of the upper parts of a more 

 ashy brown, with paler edgings ; a nuchal collar mottled brown and 

 white. 



