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. XX.] . i. Obelia dubia Nutting. Part of colony (enlarged). 2. Gonoihyreea inornata Nutting. Part of colony, showing hydrothecae and gonangium (enlarged). 3 and 4. Gonangia (enlarged). [204] (222)
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