520 Wisconsin Academy of Sciences, Arts, and Letters. 
The name of the type species, hitherto known as Ochthodro- 
mus geoffroyi (Wagler,)^ is antedated hy Charadrius lesch- 
enaulti. Lesson,^ as Mr. Mathews has shown.^ The type and only 
species of this genus will, therefore, stand as 
Pagoa leschenaultii (Lesson). 
Pagolla Mathews. 
Ochthodromus Keichenbach, Natiiii. Syst. Vogel, 1852, p. 
XVIII (type, by original designation and monotypy, Chara- 
drius wilsonia Ord) (nee Ochthedromus LeConte, Ann. Lyc. 
Nat. Hist. N. Y., IV, 1848, p. 453 [Coleoptera]). 
Pagolla Mathews, Birds Australia, III, pt. 1, April 2, 1913, 
p. 83 (type, by original designation and monotypy, Charadrius 
wilsonia Ord) (nom. nov. pro Ochthodromus Keichenbach, 
praeoc.) 
Diagnosis. —Similar to Pagoa, but bill shorter and wider, the 
exposed culmen only 7/10 of the length of the head, and not 
longer than the middle toe with claw; and tarsus 1% times 
the middle toe without claw. 
Description. —Wing about 21/2 times the length of tail, 5%— 
5 4/5 times the length of exposed culmen, and about 4 times 
the length of the tarsus; tail rounded or square, about 2i/^ 
times the length of the exposed culmen, and about 12/3 times 
the length of the tarsus; bill long but stout, its tip much ex¬ 
panded vertically, the gonys sharply angled and strongly as¬ 
cending; exposed culmen about 7/10 the length of the head, 
31/3—31/2 times the height of bill at base, 31/3 limes its 
breadth at the loral feathering, and shorter than the length of 
the middle toe ithw claw; dertrum slightly more thani/^ the 
length of the exposed culmen; tarsus 1% times the length of the 
exposed culmen, and 1% times the length of the middle toe 
without claw; bare portion of tibia 9/10 of the length of the 
middle toe without claw. 
Type.—Charadrius wilsonia Ord. 
Remarks. —^In rostral characters this genus is like Pagoa and 
Pluviorhynchus, differing in this respect, as do the two last 
1 C/i [aradrius^. Geoffroyi W&gler, Syst. Avium, 1827, Charadrius, No. 19, 
p. 61 (Pondichery, India; and Java). 
2 Diet Sci. Nat, XLII, 1826, p. 36 (Pondichery, India). 
lEmu, XVI, July, 1916, p. 34. 
