Oberholser—Review of the Plover Genus Ochthodromus 519 
length of middle toe without claw; bare portion of tibia about 
9/10 of the length of middle toe without claw 
Type.—Charadrius ohscurus Gmelin. 
Remarks. —In its stout bill with turgid tip and in its short 
tarsus this monotypic genus is very different from both Eupoda 
and Pernettyva, and forms therefore an excellent generic group. 
The name Hyetoceryx Heine^ is merely a substitute name for 
Pluvio7'hynchus Bonaparte on grounds of purism. 
The only species of this genus is: 
Pluviorhynchus ohscurus (Gmelin). 
Pagoa Mathews. 
Pagoa Mathews, Birds Australia, III, pt. 1, April 2, 1913, 
p. 82, figs. 1 and 4 (p. 83) (type, by original designation and 
monotypy, Charadrius geoffffroyi Wagler [ = Charadrius lesch- 
enaultii Lesson]). 
Dmpnosi^.-rSimilar to Pluviorhynchus, but wing 6 times 
the length of the exposed culmen, and 3% times the length of 
the tarsus; tail 1% times the length of the tarsus; tarsus 1% 
times the length of the exposed culmen, and 2 times the length 
of the middle toe without claw. 
Description. —^Wing 21/2—2 2/3 times the length of the tail, 
about 6 times the length of the exposed culmen, and 3% times 
the length of the tarsus; tail square, the two middle rectrices 
projecting beyond the rest; tail about 2% times the length of 
the exposed culmen, and II /2 times the length of the tarsus; 
bill long and stout, its tip much expanded vertically, the gonys 
conspicuously angled and strongly ascending; exposed culmen 
4/5 of the length of the head, 31/4 times height of bill at base, 
4 times its breadth at the loral feathering, and longer than 
the middle toe with claw; dertrum i/^ the length of the exposed 
culmen; tarsus 1% times the length of the exposed culmen, 
and 2 times the length of middle toe without claw; bare por¬ 
tion of tibia equal to the middle toe without claw. 
Type.—Charadrius leschenaultii Lesson. 
Remarks. —In shape of bill this group is like Pluviorhynchus, 
and differs much as does that genus from Eupoda and Per¬ 
nettyva. 
^ Nomenclator Mus. Hein. Ornith., 1890, p. 336. 
