Image from page 191 of "The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic" (1912)
![Image of Pterotracheoidea Rafinesque 1814](https://beta-repo.eol.org/data/media/d6/db/df/509.3018d93eb4bf9302ad40e63914e49611.580x360.jpg)
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Title: The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic Identifier: depthsofoceange00murr Year: 1912 (1910s) Authors: Murray, John, Sir, 1841-1914; Hjort, Johan, 1869- Subjects: Oceanography Publisher: London Macmillan Contributing Library: Robarts - University of Toronto Digitizing Sponsor: University of Toronto Text Appearing After Image: FIG. 123. Pterotrachea coronata, Forsk. (From Leuckart, after Steuer.) This species has no shell, and therefore does not enter into the composition of deep-sea deposits. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Included On The Following Pages:
- Life
- Cellular
- Eukaryota (eukaryotes)
- Opisthokonta (opisthokonts)
- Metazoa (animals)
- Bilateria
- Protostomia (protostomes)
- Spiralia (spiralians)
- Mollusca (molluscs)
- Gastropoda (snails)
- Littorinimorpha
- Pterotracheoidea
- Pterotracheidae
- Pterotrachea
- Pterotrachea coronata
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