452 ORNITHOLOGY AND OOLOGY. 



connected by a bas'al membrane ; the tail always with distinct transverse bars iu 

 North-American species, except in Hete7'oscelus. 



This sub-family appears to differ from most Scolopacinm in the less degree of sen- 

 sitiveness in the tip of the bill, which is more homy, and not covered by soft skin 

 well supplied with nerves. The toes are almost always connected at the base by a 

 membrane; this being the rule and not the exception, as in Scohpacirus. 



SYMPIIEMIA, Rafinesque. 



Sym2)hem{a, Rafinesque, Jour, de Phys. (1819). (Type Scolojmx semiy-nlmata, 

 Gmelin.) 



Bill compressed, vcr)' thick, the culmen rounded; the lower mandible scarcely 

 grooved; the upper grooved to about the middle; culmen slightly convex; gonys 

 ascending; bill cleft but little beyond base of culmen; feathers of sides of both 

 mandibles falling short of the nostrils; the lower rather farther forward; chin feath- 

 ers reaching to beginning of nostrils; bill longer than head, about equal to tarsus, 

 which is more than one and a half times the middle toe; both toes webbed, the 

 emargination of inner web as far forward as the middle of basal joint of middle loe, 

 the outer reaching nearly to the end; bare portion of tibia rather less than middle 

 toe without claw; tail nearly even, or little rounded, not half the wings. 



SYMPHEMI A SEMIPALMATA. — Hartlanb. 

 The Willet. 



Scolopax semipalmatus, Gmelin. Syst. Nat., I. (1788) 659. Wils. Am. Om., VU. 

 (1813) 27. 



Totamis semipalmatus, Audubon. Om. Biog., III. (1835) 510; V. 585. Birds 

 Am., V. (1842) 324. 



Totanus (catopfrophortis) semipalmatus, Bonaparte. Syn. (1828), 328. Nut*. 

 Man., n. (1834) 144. 



Symphemia semipalmata, Hartlaub. Rev. Zool. (1845), 342. 



DESCRimON. 



The largest American species of this genus ; bill longer than the head, straight, 

 rather thick and strong; groove in the upper mandible extending about half ita 

 length, in the lower mandible nearly obsolete; wings long; kg.s long, strong; toes 

 moderate, united at base by membranes, the larger of which unites the outer and 

 middle toe ; hind toe small ; tail short. 



Adult. — Entire upper parts dark-ash color (without spots); the shafts of the 

 feathers brownish-black; rump and upper tail coverts white; under parts white, 

 tinged with ashy on the neck and sides; axillaries and under wing coverts brown- 

 ish-black; primary quills wliite at base, and tipped with brownish-black; secon- 

 daries white, spotted with brownish-black; tail ashj^-white, the two middle feathers 

 strongly tinged with ashy ; others spotted with dark ashy-brown; bill dark bluish- 

 brown, lighter at base; legs light-blue. 



Ymuif/er. — Entire plumage spotted, and transversely banded with brownish- 

 black; iris brown. 



Total length, about fifteen inches; wing, eight and a quarter; tail, three and a 

 quarter; bill, about two and a half; tarsus, about two and a half inches. 



