118 ornithologist's text-book. 



X Order, Grall.e. 

 Morinella, &c. 



XI Order, Natatores. 



I Fam. Conirostres. — Fulica, Podiceps, Alca, 

 Mormon, Uria, Sterna, Larus, Lestris. 



II Fam. Lamelloso-dentati. — Anas,Anser,Mer- 

 gus. 



III Fam. Steganopodes. — Pelecanus, Carbo, 

 Sula. 



11 orders, 10 families, 



