TABLE OF THE HIGHER GROUPS. 
Order VI. NATATORES. (Page 752.) 
Sub-order A. ANSEEES. (Page 753.) 
XXIII 
Cygnmae.. 
Anseiinao . 
Erismaturinae 
Merginae 
Cygnus, Linn., 
Anser,Linn... 
Bernicla, StepI 
Clilorphaga, Eyton 
Dendrocygna, Svv.. 
Anas, Linn 
Dafila, Leach 
Nettion, Kaup 
Querquedula, Steph 
Spatula, Boie 
Chaulelasnms,Giay 
Mareca, Steph 
. Aix, Boie 
. Fulix, Sund 
. Aythya, Boie 
. Bueephala, Bd. ... 
. Histrionieus, Less. 
. Harelda, Leacli ... 
I. Polysticta, Eyton.. 
|. Lampronetta, Brdt. 
. CamptolaemusjGr. 
. Melanetta, Boie... 
!. Pelionetta, Kaup. .. 
i. Oidemia, Flem. 
:. Somatcria, Leach. . . 
i. Erismatura, Bon... 
Mergus, Linn 
. Lqpiiodytes, Reich. 
!. Mergellus, Selby . . 
Olor, Waglei 
Chen, Boie.. 
Anser, Linn 
Leucoblephi 
Sub-order B. GAVIAE. (Page 818.) 
Tribe 1. TOTIPALMI. (Page 819.) 
47. Pelecanidae 
48. Sulidae 
49. Tachypetidae... . 
50. Phalaerocoraci- 
dae 
51. Plotidae 
52. Phaetonidae 
Plotinae 883 . 
Phaetoninae 
259. Peleeanus, L 
260. Sula, Br 
261. Taehypetes, Vieill. 
262. Graculus, L 
263. Plotus, L... 
264. Phaeton, Li: 
Cyitopclicanus.Kch. 
Onocrotalus, Wagl.. 
I'halari-nciira.x, l!r 
Graculus, Bon. ... 
Urile, Bon 
