BRITISH BIRDS. 
61 
SUB GENUS 5. Rhynchaspis. Leach. 
Sp. 1. R. Clypeata. Linnaeus. 
Syn. Anas Clypeata, Linn. Lath. Briss. Gmel. Anas Platyrhynchos 
Altera, and Anas Platyrhynchos, Ray , Will. Canard Sou- 
chet, Temm. Souchet, Buff. Shoveller, English Authors. 
SUB GENUS 6. Anas.* Linnaeus. 
Sp. 1. A. Bosch as. Linnaeus. 
Syn. Anas Boschas, Linn. Lath. Gmel. Le Canard Sauvage, Buff. 
Canard Sauvage, Temm. Wild Duck, Mallard, (the male,) 
the Tame Duck, Hook-billed Duck, Varieties, English 
Authors. 
GENUS 10. Tadorna. Leach. 
Sp. 1. T. Rutila. Pallas. 
Syn. Anas Rutila, Pall. A. Casarka, Linn. Gmel. Lath. A. Cana, 
Lath. Canard Kasarka, Temm. Ruddy Goose, Lath. Fer- 
ruginous Duck, Bewick. 
Sp. 2. T. Bellonii. Stephens. 
Syn. Anas Tadorna, Ray, Will. Linn. Lath. Gmel. Briss. Canard 
Tadorne, Temm. La Tadorne, Buff. Shieldrake, English 
Authors. 
GENUS 11. Anser. Ray. 
SUB GENUS 1. Anser. Stephens. 
Sp. 1. A. Segetum. Gmelin. 
* In our sketch of the arrangement of the Duck tribe we used the sub generic name 
of Boschas, Swainson ; on consideration, we have preferred that of Anas, Linrueus, it 
being the older one. 
