70 R. W. Suureuor, “Tree-Ducks” of the genus Dendrocygna. 
Plate 13 
Fig. 104. Left pectoral limb of Oereopsis novae-hollandiae. Adult; 
nat. size. From the same skeleton as shown in former figures and Plates 
(No. 19711, Coll. U. S. Nation. Mus.). 
Fig. 105. Left lateral view ofthe skull and articulated mandible 
of a specimen of Tachyeres ceinereus (Falkland Islands). Adult; nat. size 
(No. 1818, Coll. U. S. Nation. Mus... Malar bone of zygoma displaced. 
Fig. 106. Left pelvic limb of Cereopsis novae-hollandiae. About 
two-thirds natural size (No. 19711, Coll. U. S. Nation. Mus.). Other 
bones of this skeleton shown on preceding Plates of this paper. 
Plate 16, 
Fig. 107. Outer view of the right tibio-tarsus and fibula of 
a specimen of Dendrocygna autumnalis, &. Nat. size. Collected by Mr. 
F. B. ARMSTRONG (455). 
Fig. 108. Left lateral view ofthe shoulder girdle of a specimen 
of Dendrocygna bicolor, &. Adult; nat. size (F. B. ARMSTRONG coll. 456). 
Fig. 109. Anterior aspect of theright pes of Dendrocygna autumnalıs. 
Adult, 2. Nat. size (F. B. ARMSTRONG coll. 453). 
Fig. 110. Upper view of mandible of Dendrocygna bicolor, &. 
Adult. Nat. size (F. B. ARMSTRONG coll. (456). 
Fig. 111. Ventral view of the pelvis and caudal vertebrae 
of Dendrocygna bicolor, &. Adult. Nat. size (F. B. ARMSTRONG coll. 
No. 456). 
Fig. 112. Left lateral view of the trunk skeleton of Dendro- 
cygna autumnalis, &. About natural size. Shoulder- girdle removed 
(F. B. ARMSTRONG coll. No. 455). 
G. Pätz’sche Buchdr. Lippert & Co. G. m. b. H., Naumburg a. d. S. 
