BIRDS OF NORTH AND MIDDLE AMERICA 135 



Elena, Argentina). — Martelli, Mem. Mim. Obras Pub. Corresp., 1924, 631 

 (Buenos Aires). — Smyth, El Hornero, iv, 1927, 15 (eggs; Argentina).— 

 Anonymous, El Hornero, v, 1933, 244, in text (Chascomus, Argentina; 

 Las Flores). 



Rostrhamphus sociahilis Chapman, Bull. Amer. Mus. Nat. Hist., xxxvi, 1917, 

 249 (Barranquilla, Colombia). 



Rostrohamus sociahilis Hudson, Birds La Plata, ii, 1920, 59 (habits). 



Rostrhamus sociahilis sociahilis Ridgway, in Baird, Brewer, and Ridgway, Hist. 

 North Amer. Birds, iii, 1874, 208.— Swann, Synop. Accip., pt. 3, 1922, 156 

 (Colombia to Peru and Argentina) ; Monogr. Birds Prey, ii, 1934, 247. — 

 Chapman, Bull. Amer. Mus. Nat. Hist., Iv, 1926, 237 (Yaguachi Marshes, 

 Ecuador).— Wetmore, U. S. Nat. Mus. Bull. 133, 1926, 106 (w. of Puerto 

 Pinasco, Paraguay; near San Vicente, Laguna Castillos, Lascano, and Rio 

 Nepo, Uruguay; near 25 de Mayo, Buenos Aires; habits; fresh colors soft 

 parts; crit. gen. name). — Friedmann, Bull. Mus. Comp. Zool., Ixviii, No. 4, 

 1927, 158 (Argentina; habits). — Hellmayr, Publ. Field Mus. Nat. Hist., 

 zool. ser., xii, 1929, 455 (Maranhao, Brazil). — Naumburg, Bull. Amer. Mus. 

 Nat. Hist., Ix, 1930, iii (Matto Grosso, Brazil).— Darlington, Bull. Mus. 

 Comp. Zool., Ixxi, 1931, 365 (Rio Frio, near Santa Marta; Magdalena, 

 Colombia; habits).— Peters, Check-list Birds of World, i, 1931, 202.— 

 Griscom, Bull. Mus. Comp. Zool., Ixxii, 1932, 313 (Perm6, Panama) ; Ixxviii, 

 1935, 298 (Obaldia, eastern Darien). — Belcher and Smooker, Ibis, 1934, 589 

 (Trinidad; hist.; rare). — -Laubmann, Verh. Orn. Ges. Bay., xx, 1934, 290.— 

 Roberts, Trop. Agr., xi. No. 4, 1934, 5 (Trinidad). — Stone and Roberts, 

 Proc. Acad. Nat. Sci. Philadelphia, Ixxxvi, 1934, 371 (Matto Grosso, Brazil; 

 spec). — Zotta, El Hornero, v, 1934, 382 (food habits; Argentina). — [Anon- 

 ymous], El Hornero, vi, 1935, 184 (Panama and South America). — Steullet 

 and Deautier, Obra Cincuentenario Mus. La Plata, i, 1936, 401 (Argentine 

 records; syn. ; distr.). — Pereyra, Mem. Jardin Zool. La Plata, ix, pt. 2, 1938, 

 51 (ne. Buenos Aires Province; common; distr.; eggs). — Pinto, Rev. Mus. 

 Paulista, xxii, 1938, 65 (distr.); xxv, 1941, 12 (Matto Grosso, Cuiabd; spec; 

 very common). — Dugand, Rev. Acad. Colomb., iii, 1940, 218 (Barranquilla, 

 Colombia). — Griscom and Greenway, Bull. Mus. Comp. Zool., Ixxxviii, 

 1941, 111 (Lower Amazonia; Rio Tapajoz, Pinhy; spec). — Gyldenstolpe, 

 Kungl. Svenska Vet. Akad. Handl., xxiii, No. 1, 1945, 49 (n. Bolivia; spec, 

 meas.). — Borrero, Caldasia, iv, 1946, 170 (Colombia, Sabana de Bogota). 



Rosthramus sociahilis sociahilis Snethlage, Journ. fiir Orn., Ixxvi, 1928, 677 

 (breeding habits, etc.; ne. Brazil). 



Ihicter sociahilis Schlegel, Mus. Pays-Bas, ii, No. 9, livr. 2, 1863, 7 (Surinam, 

 Brazil); ii. No. 36, livr. 10, 1873, 138. 



Hainirostrum sociabile Heine and Reichenow, Nom. Mus. Hein., Orn., 1890, 

 264 (BrazU). 



Cymindes sociahilis Oberholser, Auk, xl, 1923, 679, part. 



Rostrhamus socialis socialis Nelson and Goldman, Proc. Biol. Soc Washington, 

 xlvi, 1933, 193. 



Cymindes leucopygus Spix, Av. Bras., i, 1824, 7, pi. 2 (Amazon River, Brazil). 



Ihicter leucopygus Schlegel, Mus. Pays-Bas, ii, No. 9, livr. 2, 1863, 8 (Brazil); 

 No. 36, livr. 10, 1873, 138. 



Rostrhamus leucopygus Sclater and Salvin, Nom. Av. Neotr., 1873, 121 (Bra- 

 zil). — Barrows, Auk, i, 1884, 111 (Lower Uruguay). — Holmberg, Segundo 

 Censo Argent., i, Aves, 1898, 508.— Sharps, Hand-list, i, 1899, 269 (Brazil; 

 Guianas; Colombia). — Salvador: and Festa, Boll. Mus. Zool. Torino, xv, 

 1900, 31 (Vinces, w. Ecuador). — Reiser, Denkw. Mat. -Nat. Akad. Wiss 



