Land and fresh water mollusks / by William H. Dall. Hydroids / C.C. Nutting.

  • William Healey Dall
Date:
[1910]
Catalogue details

Licence: In copyright

Credit: Land and fresh water mollusks / by William H. Dall. Hydroids / C.C. Nutting. Source: Wellcome Collection.

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    [Proc. Wash. Acad. Sci., Vol. Ill, PI. XXVI.] Fig. i. Thuiaria coei Nutting. Part of branch, showing hydrothecae and gonangia (enlarged). 2. Lateral view of hydrotheca (enlarged). 3. Single gonangium (enlarged). 4. Thuiaria costata Nutting. Part of main stem, showing origin of branches (enlarged). 5. Front view of terminal branches (enlarged). 6. Two pairs of hydrothecae (greatly enlarged). 7. 8, 9. Gonangia (enlarged). [216] (234)
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