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Genus II. 
Tystie. Ceplius. — Cuv. 
1 North European tystie. C. grylle, Cuvier. 
2 Long-billed tystie. C. arcticus, Brehra. 
3 Meisner’s tystie. C. Meisneri, Brehm. 
4 Faroe tystie. C. Faroensis, Brehm. 
5 Ice tystie. C. glacialis, Brehm. 
Genus III. 
Mergulus of Ray. Rotche. Little awk. 
1 Flat-crowned rotche. M. alle, Ray. 
2 High-crowned rotche. M. arcticus, Ray. 
Genus IV. 
Coulterneb. Mormon. — Illig. 
1 Northern coulterneb. M. fratercula, Temm. 
2 Ice coulterneb. M. glacialis, Leach. 
3 Polar coulterneb. M. polaris, Brehm. 
4 Grabas coulterneb. M. Grabse, Brehm. 
Genus V. 
Awk. Alca. — Linnceus t Cuvier , Temminck , Ray. 
1 Eastern awk. A. Balthica, Brehm and Bruennich. 
2 Razor bill, or marrot. A. torda, Linn. 
3 Ice awk. A. glacialis, Brehm. 
4 Icelandic awk. A. icelandica. 
GENERA PROCELL ARIA, HYDROBATES, PUFFINUS, 
SULA, AND CARBO. 
Genus I. 
Fulmar. Procellaria Linnceus , 8$c. 
1 Ice fulmar. Pr. glacialis, linn. 
2 Winter fulmar. Pr. hiemalis, Brehm. 
Genus II. 
Petrel, or Peter’s bird. Hydrobates. — Boje. 
1 Faroe petrel. Hyd. Faroensis of Graba and Brisson. 
2 Stormy petrel. H. pelagicus, Boje. 
Genus III. 
Storm Diver, or Puffin. Puffinus. — Brisson. 
1 Northern puffin. Puff, arcticus, Faber. 
2 Hank’s puffin. Puff, anglorum, Brehm. 
