LEUCOPOLIUS. 
The first subdivision of the group as a whole however, was when 
Keichenbach {Nat. Syst. Vogel., p. xviii., 1852) added Oxyechus, Zonibyx, 
Mgialeus, and OcMhodroinus. This was followed up by Bonaparte {Comptes 
Rendus Sci. (Paris), Vol. XLIII., p. 417, 1856) further differentiating Pluvior- 
hynchus, Cirrepidesmus, and Leucopolius. Gould {Handh. Birds Austr,, 
Vol. II., p. 234, 1865) then named the genus Mgialophilus, and the following 
year Coues defined Podasocys. Since that date the tendency has been rather 
to lump than to differentiate, and quite peculiar results have been produced 
by following up this policy. 
Seebohm, in his Geographical distribution of the CharadriidcB, admitted 
the genus Charadrius as being divisible into three subgenera, Pluvialis, 
Hiaticula, and Mgialophilus. The composition of the first-named I have 
already given, but the following two I would here note. The subgenus 
Hiaticula he further subdivided into two “ subgeneric groups,” “ Hiaticulm 
typicoe'*'* and Hiaticulce minores.'^'^ To the former he allotted (p. 120 et seq.) — 
C. hiaticula 
monachus 
novce-zelandice 
semipahnatus 
vociferus 
7nelodus 
circu7ncinctus 
JEgialitis, Catalogue of Birds. 
,, {cucullata). 
Thinornis. 
JSgialeus. 
Oxyechus. 
jEgialitis. 
—7nelodus. 
while the latter included (p. 131 et seq .) — 
C. 7ninor 
placidus 
forbesi. 
tricollaris 
bifrontatus 
jerdoni 
nigrifrons 
JSgialitis {dubia). 
Oxyechus. 
99 
” 
=dubia 
JEgialitis {7nelanops). 
The subgenus JEgialophilus is also subdivided, though he wrote : “ The 
Sand Plovers form a well-defined subgeneric group,” into “ Majores ” and 
“ Minores.” To the former was assigned (p. 143) — 
C. asiaticus 
7nongolicus 
geoffroyi 
bicinctus 
frontalis 
obscurus 
Ochthodro7nus, Catalogue of Birds. 
99 
Anarhynchus. 
Ochthodro7nus. 
109 
