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. XV.] . I. Garveia annulata Nutting. Part of colony, showing hydranths and gonophores. 2. Single hydranth, showing pseudo-hydrotheca (enlarged). 3. Eudendrium vaginatum. Allman. Part of colony, showing hydranths and gonophores. 4. Single hydranth, showing pseudo-hydrotheca (enlarged). 5. Cluster of female gonophores. 6. Single gonophore, with expanded chitinous collar (enlarged). [194] (212)
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