114 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
(?) Eudromias wilsoni Reiser, Denkschr. Mat.-Nat. Kl. K. Ak. Wiss. Wien, txxvi, 
1910, 94 (coast of Piehy, n. e. Brazil, Sept. 14). 
Ochthodromus wilsont SHarre, Cat. Birds Brit. Mus., xxiv, 1896, 214, 739, part 
(Carupano and Cumana, Venezuela; Oyapoc River, Cayenne?). 
[Ochthodromus] wilsont SHarPs, Hand-list, i, 1899, 153, part.—ForBEs and 
Rosrnson, Bull. Liverp. Mus., ii, 1899, 66, part (Cumana, Venezuela). 
Ochthodromus wilsonius rufinuchus (not Aigialitis wilsonius var. rufinucha Ridg- 
way, 1874) Ripeway, Proc. U. 8. Nat. Mus., vii, July 29, 1884, 177 (Sabanilla, 
Colombia, March).—Lowgs, Ibis, 1907, 552 (Margarita Island, Venezuela),— 
Cory, Pub. 187, Field Mus. N. H., 1909, 197 (Aruba, Dutch West Indies), 214 
(Isla des Aves), 238 (Margarita Island). 
Ochthodromus wilsonia rufinucha Hettmayr, Novit. Zool., xiii, 1906, 53 (Seelet, 
Trinidad; crit.). 
Afegialitis] wilsonia rufinucha Ripaway, Man. N. Am. Birds, 1887, 175, part. 
Zigialitis wilsonia rufinucha Rosinson, Proc. U. 8. Nat. Mus., xviii, 1896, 656 
(Margarita Island). 
Aegialitis wilsonius rufinucha Harter, Novit. Zool., ix, 1902, 307 (Aruba and 
Bonaire, Dutch West Indies). 
Aigialitis rufinucha Harrert, Ibis, 1893, 307 (Aruba; Bonaire; crit.), 335 (Bonaire). 
Genus CHARADRIUS Linnezus. 
Charadrius Linnaus, Syst. Nat., ed. 10, i, 1758, 150. (Type, by tautonymy, 
Charadrius hiaticula Linneeus.) 
Aegialitis Born, Isis, 1822, 558. (Type, as designated by Gray, 1855, Charadrius 
_  hiaticula Linneus.) 
Aegialites (emendation) Borg, Isis, 1826, 978. 
Aegialeus ReicHenBAcH, Syst. Avium, 1853, p. xviii. (Type, by monotypy,- 
Charadrius semipalmatus Bonaparte.) 
Leucopolius Bonaparte, Compt. Rend., xliii, 1856, 417. (Type, by tautonymy, 
Charadrius leucopolius Wagler=C. marginatus Vieillot.) _ 
Cirrepidesmus Bonaparte, Compt. Rend., xliii, 1856, 417. (Type, by tautonymy, 
Charadrius cirrhepidesmos Wagler=C. mongolus Pallas.) 
Hiaticula Gray, List Gen. Birds, 1840, 85. (Type, by tautonymy, Charadrius 
hiaticula Linnzus.) 
Aigialophilus Goutp, Handb. Birds of Australia, ii, 1865, 234. (Type, by original 
designation, Charadrius cantianus Latham.) 
Small to very small Charadriidz (wing 90-153 mm.) with tail much 
less than half as long as wing, tarsus not more (usually much less) 
than twice as long as middle toe without claw, and culmen less than 
one-sixth as long as wing and less than two-thirds as long as tarsus, 
the bill slender or small. : 
Bill relatively small, slender, or else very short; exposed culmen 
very slightly if at all longer than middle toe without claw, usually 
equal to same or shorter, the greatest depth of bill equal to less than 
one-fourth to more than one-third the length of culmen; arched 
terminal portion of culmen usually shorter than depressed basal 
portion, rarely longer; gonys as long as, longer than, or shorter than 
mandibular rami. Wing long and pointed, the longest primary 
(outermost) exceeding distal secondaries by about one-half length of 
wing. Tailnot more (usually less) than half aslong as wing, truncate 
to distinctly rounded, the middle pair-of rectrices usually projecting 
slightly beyond next pair. Tarsus one and a half times to twice as 
