182 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



(not longer, sometimes shorter, than outer toe without claw), the 

 acrotarsium with a continuous single row of broad scutella, the 

 planta tarsi with a single row of similar but smaller scutella on outer 

 side (sometimes broken on lower portion), sometimes separated from 

 those of the acrotarsium by one or two rows of smaller, more hexa- 

 gonal, mostly longitudinal scales, the hinder portion curved with much 

 smaller hexagonal scales, curved on inner side with scales and scutella 

 of various sizes, the larger sometimes arranged, in part, in longitudinal 

 series ; outer toe with claw reaching about to base of middle claw, the 

 inner toe, without claw, extending to beyond penultimate articulation 

 of middle toe ; hallux, without claw, about as long as basal phalanx 

 of outer toe; anterior toes with a distinct though narrow lateral mem- 

 brane on each side; claws relatively long, compressed, moderately 

 curved (that of middle toe less so and sometimes considerably 

 elongated), acute. 



Plwniage and coloration. — Plumage full and dense, that of head 

 and neck shorter and blended ; remiges and rectrices moderately rigid. 

 Adults plain slate color, the upper parts more olivaceous, sometimes 

 decidedly olive-brown; lateral under tail coverts and (in European, 

 African, and American forms) outer webs of outermost feathers of 

 sides and flanks white; bill and frontal shield bright red, the former 

 tipped with green or yellow. 



Range. — Palearctic, Indian, African, Nearctic, Neotropical, and 

 Australian regions; Hawaiian Islands. (Two species, one with many 

 races.) 



KEY TO THE AMERICAN FORMS OF GALLINULA CHLOROPUS 



a. Size, very large, wings over 200 mm. 



Gallinula chloropus garmani (extralimital)" 

 aa. Size smaller, wings vpell under 200 mm. 



"Gallinula chloropus garmani. — (?) Fiilica galeata (not Crex galeata Licli- 

 tenstein ?) Gould, Zool. Voy. Beagle, iii (Birds). 1841, 133 (Concepcion, 

 Chile); (?) Fraser, Proc. Zool. Soc. London, 1843, 118 (Lakes Quintero and 

 Santa Domingo, Chile). — (?) G[allimila] galeata Tsehudi, Wiegmanu's Archiv 

 fiir Naturg., x, pt. i, 1844, 313 (Peru). — (?) GaUhmla galeata Gay, Fauna 

 Chilean, i, 1847, 437; Sclater, Proc. Zool. Soc. London, 1867, 337 (Chile); 

 1886, 402 (Sitana, Tarapaca, Chile) ; Sharpe, Cat. Birds Brit. Mus., xxiii, 

 1894, 177, part (Laguna de Tauibo, Peru; Sayaca, Chile); Lane, Ibis, 1897, 

 300 (Sacaya, Chile, up to 11,000 feet) ; Berlepsch and Stolzmann, Oruis, 

 xiii, 1906, 131 (Puno, Peru). — GalUnnla garmani Allen, Bull. Mus. Comp. Zool., iii, 

 1876, 357 (Lake Titicaca, Peru; coll. Mus. Comp. Zool.) ; Bui. Amer. Mus. Nat. 

 Hist., ii, 1889, 107; Baird, Brewer, and Ridgway, Water Birds North Amer., 

 i, 1884, 388. — [Gallinula'\ garmani Brabourne and Chubb, Birds South Ameri- 

 ca, i, 1912, 2.5 (Peru). — Gallinula chloropus garmani Bangs, Proc. New England 

 Zool. Club, V, 1915, 98 (diagnosis; measurements; crit.) ; Hartert, Nov. Zool., 

 xxii, 1917, 270 (crit.) ; Peters, Check-list Birds of World, ii, 1934, 205.— Gal- 

 linula galeata garmani Chapman, Bull. U. S. Nat. Mus. 117, 1921, 48 (Calca, 

 se. Peru). 



