148 BULLETIX 50, rXITED STATES XATIOXAL MUSEUM. 



/. A distinct web between basal portion of inner antl middle toes. 



g. Axillars uniform dusky; primarits extensively white basally; larger, 

 with stouter bill and feet,(,wing more than ISO mm.), 



Catoptrophorus (p. 314 K 

 gg. Axillars white: primaries without white at base: smaller, with 

 more slender bill and feet (wing about 175 mm.), 



Pseudototanus (extralimital)." 

 ff. No web between inner and middle toes. 



g. Planta tarsi scut ellate; axillai-s white, with or without gray bars: tail 

 barred. 

 h. Tarsus more than one and a half times as long as middle toe without 

 claw. 

 i. Xasal groove extremely short, extending for not more than one- 

 fourth the length of maxilla; symphysis of mandible posterit.r 



to the middle Erytliroscelus ( extralimital t.'' 



ii. Nasal groove longer, extending for more than one-fourth (usually 



more than one-third "i the length of maxilla; symphysis of 



mandible anterior to the middle. 



j. Nasal groove extending half way to tip of maxilla; bill stouter; 



tarsus slightly less than one-third as long as wing. 



it. Bill stouter (its depth at base equal to about one-seventh the 



length of exposed culmen). more compressed, distinctly 



recurved or upturned for distal half, the exposed culmen 



nearly as long as tarsus; tarsus less than one-thu-d as long 



as wing: rump and lower back white Glottis (p. 322}. 



kk. Bill more slender (its depth at base equal to not more than 

 one-eighth the length of culmen), less compressed, not 

 distinctly recurved, the exposed culmen much shorter 

 than tarsus: tarsus one-third as long as wing: rump and 



lower back dusky Neoglottis (p. 329 1. 



jj. Nasal groove extending only one-third the length of maxilla; 

 bill more slender; tarsus much more than one-third as long as 



wing Iliornis (extralimitalj.f 



hh. Tai-sus decidedly less than one and a hilf times as long as middle 

 toe without claw. 

 i. Exposed culmen shorter than tarsus; nasal groove broad; outer- 

 most primaries with shafts white; metasternum 4-notched. 



Rhyacophilus (p. 346 >. 



ii". Exposed culmen not shorter than tarsus; nasal groove narrov*': 



outermost primaries with shafts dark brown; metasternum 



2-notched Tringa (p. 352 ■ 



gg. Planta tarsi reticidate: axillars and tail plain brownish gray. 



Heteroscelus (p. 365) . 



ee. Nasal groove extending for more than two-thirds the length of maxilla; 



inner webs of remiges crossed by a broad band of white. .Actitis (p. 371). 



a Pseiidototayius Hume, Stray Feathers, \i, 187S, 488; type, Totanus guWfer Nord- 

 mann. — Pseudoglottis Stejneger, Zeitschr. Ges. Orn., i, 1SS4, 223; type, Totanus 

 guttift r'Sordmann. Northeastern Asia. (Monotypic.) 



f> Erythroscehis Kaup, Skizz. Entw.-Gcsch. Natiirl. Syst., 1S29, 54; tj-pe, Scolopax 

 fusca Linn£pus. — Enjthroscelis Sharpe, Cat. Birds Brit. Mus., xxiv, 1896, 409, in syn- 

 on}Tny of genus Totatnis. Northern Europe and Asia, southward in migration. 

 (Monotj-pic") 



c Iliornis Kaup, Skizz. Entw.-Gesch. Natiirl. Syst., 1829, 156; type, Toianus stag- 

 natilis Bechstein. — Ilyornu Kaup, Skizz. Entw.-Gesch. Natiirl. S>-st., 1829, 195. 



