Becently published Ornithological Works. 281 



specific name of the White-eyed Duck. Gmelin^s Anas 

 africana may or may not refer to that species, but his Anas 

 ferruginea is of exactly the same date^ and has been in usage 

 for the last hundred years. Why, then, should we be called 

 upon to make such an unnecessary change, and to throw 

 aside a good name to adopt a bad one ? 



The species of Chenomorphae treated of in the present 

 volume and recognized as valid are 203, which are repre- 

 sented by 5044 specimens in the National Collection, only 

 eight species being left without representatives. Of Tiua- 

 mous 65 species are acknowledged, represented by 363 

 specimens, and of Ratitse 26 species, represented by 134 

 specimens. vSeven Tinamous and four Ratitse only are de- 

 ficient in the national series. 



The following four generic terras are proposed as new in 

 this volume : — Asarcornis (type Anas scutulata) ; Pteroneita 

 (type Querquedula hartlaubi) ; Nesochen (type Anser sandvi- 

 censis) ; and Elasmoneita (type Anas chlorotis) . 



The following species are described as new, or have new 

 names assigned to them : — 



Erismatura fequatorialis. Crypturus salvini. 



Merganetta frsenata. dissimilis. 



Merganser comatus. columbianus. 



Tinamus fuscipennis. mexicanus. 



■ latifrous. occidentalis. 



castaneiceps. Nothoprocta coquimHca. 



Nothocercus intercedens. Nothura nigroguttata. 



Crypturus griseiventris. boliviana. 



simplex. 



Coloured figures are given of the following species : — 

 Dendrocygna guttulata ; Nettion albigidaris, N.gibberifrons ; 

 Dafila eatoni ; Nyroca innotata ; Merganetta frcenata, M. 

 armata ; Tinamus castaneiceps, T. solitarius ; Nothocercus 

 nigricapillus ; Crypturus casianeus, C. erythropus, C. bartletti, 

 C. scolopax, C. balstoni ; Rhynchoiis macuUcollis ; Notho- 

 procta coquimbica, N. pentlandi, N. ornata ; Nothura mar- 

 moraia, N. darwinii. 



