DENDROCYGNA. LOY 
Subfamily ANATIN &. 
Genera. 
a. Bill not spatulate. 
bt. Central tail-feathers not greatly lengthened. 
¢. No wing-speculum; lower portion of tarsi with small reticulate scales in 
PROT Goose ee ee nec ete nce cnesec caer acer nuneanwcaeencenentocennsanarenarcncs Dendrocygna (p. 187) 
¢. Wing-speculum present; lower portion of tarsi with transverse seutella 
in front. 
.d. Larger; bill broader; culmen more than 50 mm. 
é. Bill uniform blackish...........--.--------------------eeeneeteeeeesene Anas (p. 189) 
@, Bill with a broad yellow band at the tip.......-.-..----- Polionetta (p. 190) 
d?, Smaller; bill narrower; culmen less than 45 mm. 
e', Larger; wing more than 230 mm.........--------------------0- Mareca (p. 191) 
e?. Smaller; wing less than 215 mm. 
f'. Secondary-coverts brown; greater part of head and neck chestnut in 
SRCNANG) oe ipeee ete tcdesdeatcnnnet bpoderbaseceennenuancronenenec=sann Nettion (p. 192) 
f?. Secondary-coverts blue-gray ; head and neck not chestnut. 
Querquedula (p. 195) 
b?. Central tail-feathers greatly lengthened..............-.-.------------------ Dafila (p. 194) 
a?. Bill flattened and spatulate...........-----------------------reeerrrerrtree Spatula (p. 196) 
Genus DENDROCYGNA Swainson, 1837. 
General color largely blackish and reddish or yellowish brown; -breast 
more or less spotted; no bright colored speculum nor white wing-patch ; 
inner web of first primary deeply scooped near its middle; next three 
quills slightly emarginate. 
Species. 
at, Wing-coverts deep chestnut. 
bt. Fore part of head white. ........-.-----------------co-ecnseec renters viduata * 
b?, Fore part of head brown; breast rufous-chestnut with small black spots. 
arcuata (p. 187) 
a?, Wing-coverts blackish brown; breast and sides marked with round white 
EU Sa a aS ne a cn = guttulata (p. 189) 
155. DENDROCYGNA ARCUATA (Horsfield). 
WANDERING TREE DUCE. 
Anas arcuata HorsFIELD, Zool. Res. in Java (1822), pl. 65. 
Dendrocyena arcuata SALVADORI, Cat. Birds Brit. Mus. (1895), 27, 153; 
OarEs, Cat. Birds’ Eggs (1902), 2, 158. 
Dendrocygna arcuata SHARPE, Hand-List (1899), 1, 214; McGrecor and 
Worcester, Hand-List (1906), 37. 
Ba-li’-wis, Luzon; nd-ga, Ticao; ga-kit’, Bohol. 
Bantanyan (McGregor) ; Basilan (Steere Exp., McGregor) ; Bohol (Hverett, 
McGregor) ; Camiguin N. (McGregor) ; Catanduanes (Whitehead) ; Cebu (Eve- 
rett); Guimaras (Steere Exp.) ; Leyte (Hverett) ; Luzon (Ouming, Worcester, 
* The white-faced tree duck, Dendrocygna viduata (Linneus), has been re- 
corded as a Philippine species; I believe it should be omitted from our list. 
