Columbia subject headings:
Birds--Arctic regions.
Fishes--Arctic regions.
Insects--Arctic regions.
Reptiles--Arctic regions.
Zoology--Arctic regions.
Harvard subject headings:
Birds--Arctic regions.
Fishes--Arctic regions.
Insects--Arctic regions.
Reptiles--Arctic regions.
Zoology--Arctic regions
Zoology--Arctic regions--Early works to 1800.
Princeton subject headings: