Genus— PLU VI ALIS. 
Pltjvialis Schaeffer, Museum Ornith., p. 45, 1789 Type P. apricarius. 
{Charadrius of most authors.) 
Structurally like Squatarola, but with the hind toe and claw missing. The 
bill is not quite so stout, and one of the species is less strongly built, but still 
considerably larger than the Ping- and Sand-Plovers. 
The close connection between this and the preceding genus is easily 
traced by their general coloration, notwithstanding the absence of the hind 
toe. In Squatarola the summer-plumage is mottled black-and-white above 
with the under-surface black : in the present genus the summer-plumage is 
mottled black-and-golden above with the under-surface black; but in the 
former genus the immature has the upper-surface showing a mottled black- 
and-golden-appearance. No other Plovers, save the three included in the 
two genera Squatarola and Pluvialis^ have the upper-surface mottled, nor 
have they uniform black under-surfaces. 
VOL. in, 
73 
