BIRDS OF NORTH AND MIDDLE AMERICA. 339 



Auk, xxx, 1913, 553 (Ehode Island data; last seen in State Sept. 25, 1888).— 

 Shufeldt, Auk, xxxi, 1914, 358-362, pi. 34 (osteology). 



[Ectopistes'] migratorius Gray, Hand-list, ii, 1870, 235, no. 9281. — Cotjes, Key N. 

 Am. Birds, 1872, 226. — Shahpe, Hand-list, i, 1899, 76. — Forbes and Robin- 

 son, Bull. Liverp. Mus., ii, 1900, 137 (Soldiers' Home, [District of] Columbia; 

 Nebraska). — Reichenbach, Syn. Av., Columbariae, 1847, figs, 1377-1379; 

 Av. Syst. Nat., 1852, p. xxv; Tauben, i, 1862, 81, pi. 249, figs. 1377-1379; ii, 

 1862, 176. 



[Ectopistes migratorius] Weight (A. H.), Auk, xxviii, 1911, 346-366 (early records). 



Columba (Ectopistes) migratoria Swainson, Fauna Bor.-Am., ii, 1831, 363. 



Trygon migratoria Brehm, Handb. Natflrg. Vog. Deutschl., 1831, 495; Naumannia, 

 1855, 286; V6gelf., 1855, 258. 



Turtur migratorius Schlegel, De Dierent., 1864, 305. 



Peristera migratoria Scbxegel, Mus. Pays-Bas, iv, no. 35 (Columbae), 1873, 142 

 (Philadelphia; New Jersey; Rockport, Ohio; Wisconsin). 



Columba histrio Muller, Syst. Nat. Suppl., 1776, 134 (new name for C. migratoria 

 Linnaeus). 



Columba ventralis Muller, Syst. Nat. Suppl., 1776, 134 (new name for C. canaden- 

 sis Linnaeus). 



Trygon gregaria Brehm, Naumannia, 1855, 286; Vogelf., 1855, 258. 



Genus ZENAIDURA Bonaparte. 



Zenaidura Bonaparte, Comptes Rendus, xl, Jan., 1855, 96. (Type, by original 



designation, Columba carolinensis Linnaeus.) 

 Zensedura (emendation) Coues, Key N. Am. Birds, 1872, 226. 

 Perissura a Cabanis, Journ. fur Orn., 1856, 111, 112. (New name to replace 



Zenaidura Bonaparte, on grounds of purism.) 



Rather small arboreal pigeons (length, about 235-340 mm.) with 

 tail less than three-fourths as long as wing (in Z. yucatanensis) to as 

 long as or longer than wing (in Z. macrowra), strongly graduated, con- 

 sisting of fourteen relatively narrow and tapering rectrices ; tarsus not 

 longer (sometimes slightly shorter) than middle toe (without claw) ; 

 second or second and third primaries (from outside) longest, the first 

 (outermost) longer than fifth, sometimes equal to third; a small 

 black subauricular spot, black spots on proximal secondaries, and a 

 black bar across middle portion of lateral rectrices. 



Bill small and slender, the length of exposed culmen about equal 

 to that of outer toe (without claw) and about four times the greatest 

 depth of bill, the maxillary unguis very slightly arched, the gonydeal 

 angle not prominent; frontal feathering forming an obtuse angle 

 (antia) little in advance of nasal operculum, the malar antia extend- 

 ing slightly farther, the mental antia falling slightly short of anterior 

 end of nasal operculi, the latter moderately broad and tumid. Wing 

 rather long, pointed, the longest primaries exceeding distal second- 

 aries by about half the length of wing; second or second and third 

 primaries (from outside) longest, the first (outermost) longer than 

 fifth, sometimes equal to third. Tail more than two-thirds (nearly 

 three-fourths) as long as wing to a little longer than wing, graduated 



o "Von ittpuiabt iiberviel, tiber das gewohnliche Maass hinaus." (Cabanis.) 



