280 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



tail relatively shorter (decidedly lesa than two-thirds as long as wing), 



slightly but distinctly rounded."* 



g. Tail much longer (nearly two-thirds as long as wing); bill larger 



(length from frontal antia greater than 'distance from the latter to 



anterior angle of eye); hindneck and sides of neck with plumage 



metallic Palumbsena (extralimital).a 



gg. Tail much shorter (only half as long as wing); bill smaller (length 

 from frontal antia less than distance from the latter to anterior 

 angle of eye); hindneck and sides of neck with plumage not 



metallic Notioenas (extralimital).^ 



/. Tarsus not longer thaii middle toe, its upper half feathered in front; 

 toes stouter, with more prominent scutella and more expanded, 

 more strongly papillose or spiculate soles; tail relatively longer (two- 

 thirds as long as wing), truncate Columba (extralimital).<: 



dd. Tarsus shorter than middle toe without claw; secondaries with exposed 

 portion longer than exposed portion of greater coverts, or else (in Cross- 

 ophthalmus) the bare orbital space with an outer spiculate or papillose 

 ring. 

 e. Tail 'shorter (much less than three-fourths, usually less than two-thirds, 

 as long as wing); feet relatively larger, with stouter toes; outermost pri- 

 mary longer than fifth (from outside). 

 /. Tail more than three-fifths as long as wing; plumage of hindneck not 

 barred nor spotted. 

 g. Tail distinctly rounded; outermost primary little if any shorter than 

 fourth (from outside); bare orbital space more contracted; plumage 



of hindneck not squamated Chloroenas (p. 283). 



gg. Tail nearly truncate; outermost primary much shorter than fourth 

 (from outside) ; bare orbital space much larger; plumage of hindneck 



conspicuously squamated Patagioenas(p.308). 



ff. Tail less than three-fifths as long as wing; plumage of hindneck barred 

 or spotted. 

 g. Distance from base of unguis to frontal feathering about one and a 

 half times that (in straight line) from same point to tip of unguis, 

 the latter with a shallow subterminal tomial notch; whole neck 

 conspicuously spotted and Bquamated; under wing-coverts dusky 

 purplish brown, rump brown or chestnut, and no white on wings. 



Lepidoenas (p. 315). 

 gg. Distance from base of unguis to frontal feathering less than distance 

 (in straight line) from same point to tip of unguis, the latter without 

 obvious tomial notch; hindneck (alone) barred; [under wing- 

 coverts and rump bluish gray; wings partly white. 



"■ Palumbaena Bonaparte, Consp. Gen. Av., ii, 1857, 49; type, Columba omas Lin- 

 nseus.— Sylvicola (not of Harris, 1782, Humphreys, 1797, Hiibner, 1810, Swainson, 

 1827, nor Eyton, 1836) Bogdanow, Trudy St.-Petersb. Obshch., xii, 1881, 99 (sub- 

 genus); type, Columba anas Linnseus? — Calotreron Heine, in Heine and Keichenow, 

 Nom. Mus. Hein. Orn., 1890, 275; new name for Palumbsena Bonaparte, on grounds 

 of purism. (Palsearctic.) 



6 Notioenas Bidgway, Proc. Biol. Soc. Wash., xxviii, May 27, 1915, 106; type, 

 Columba maculosa Temminck. (Southern South America; two species.) (NAtios, 

 southern; olvfc, a wild pigeon.) 



c Columba Linnseus, Syst. Nat., ed. 10, i, 1758, 162; type, as fixed by Selby, 1825, 

 C. palumbus Linnseus. — Palumbis Porster, Synopt. Cat. Brit. Birds, 1817, 55; type, 

 by tautonymy, Columba palumbus Linnseus. — Palumbus Kaup, Naturl. Syst., 1829, 

 107; type, by tautonymy, Columba palumbus Linnseus. (Palsearctic.) 



