Vol. XII. 

 1913 



] Shufeldt, Osteology of Cereopsis novcE-hollandia; . 



235 



horetts of the latter than it is to any other species of existing 

 Goose. Possibly, among extinct forms it may have had congeners 

 —and probably did — to which it was more nearly affined than 

 it is to the species just mentioned, but of this I have no knowledge 

 at present. 



The opportunity to compare it, osteologically, with the remains 

 of the extinct Cnemiornis and Ccntrornis — and especially the 

 first-named genus, of which the fossil remains of several species 

 have been found in New Zealand (Pleistocene) — has not been my 

 good fortune up to the present. 



Taking Cereopsis into consideration, my views at present upon 

 the taxonomy of the Anseres may be set forth as follows : — 



Sub-order. 



Families. 



Anseres. 



Anatidae 



Gastornithidae (extinct 

 provisional) 



Sub-families. 



1. Cygninse 



2. Anseranatinse 



3. Plectropterinae 



4. Cereopsinas 



5. Anserinae 



6. Dendrocygninae 



7. Chenonettinae 



8. Anatinae 

 Q. Fuligulinae 



10. Erismaturinae 



11. Merganettinae 

 V12. Merginae 



Not determined. 



Recently, I have completed a contribution on the genus Dendro- 

 cygna, examining the members of the entire genus and two species 

 osteologically. My examination of them has led me to believe 

 that they represent a distinct sub-family of themselves, and this 

 sub-family I have duly characterized in the aforesaid work, which 

 will appear in due course. 



Explanation of Plates. 



(All the plates are from photographs made direct from the specimens 



by the author.) 



Plate XXVIII. 



Fig. I. — Right lateral view of the skull of Cereopsis novcs-hollandicB 



with mandible detached. Very slightly reduced. (No. 



19,711, Coll. U.S. Nat. Mus.) 

 Fig. 2. — Right lateral view of the skull of Dendrocygna auiumnalis, $, 



with mandible detached. Very slightly reduced. Collected 



in Southern Texas by Mr. F. B. Armstrong. Note the 



complete osseous periphery to the orbit. 

 Fig. 3. — Right lateral view of the skull of Hymenolcemus malaco- 



rhynchus, ? (New Zealand). (No. 19,024, Coll. U.S. Nat. 



Mus.) Mandible detached. Very slightly reduced. 



