Archiv für Naturgeschichte (Nicolai, 1895)

Archiv für Naturgeschichte (Nicolai, 1895)

Bulletin of the British Museum (Natural History) Zoology - British Museum (Natural History) (BM(NH), 1987)

Bulletin of the British Museum (Natural History) Zoology - British Museum (Natural History) (BM(NH), 1987)

The Danish Ingolf-Expedition - Wandel, C. F. 1843 -1930 (H. Hagerup, 1899)

The Danish Ingolf-Expedition - Ingolf (Cruiser) (H. Hagerup, 1921)

The Danish Ingolf-Expedition - Ingolf (Cruiser) (H. Hagerup, 1921)

Journal of microscopy - Royal Microscopical Society (Great Britain) (Blackwell Scientific, 1890)

Journal of the Royal Microscopical Society - Royal Microscopical Society (Great Britain) (Royal Microscopical Society, 1889)

Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1887)

Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1887)

Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1887)

Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1887)

Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1887)