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An Ultrastructural Study of the Nematocytes of the Polyp of Chrysaora quinquecirrha

Joseph W. Burnett
Chesapeake Science
Vol. 12, No. 4 (Dec., 1971), pp. 225-230
Stable URL: http://www.jstor.org/stable/1350909
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
An Ultrastructural Study of the Nematocytes of the Polyp of Chrysaora quinquecirrha
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Abstract

The polyp of Chrysaora quinquecirrha (sea nettle) has two forms of nematocytes on the oral arms and upper stalk. A nematocyte with an unencapsulated thread and another containing an encysted heteroneme were observed. One or both of these structures were capable of producing a clinical sting in humans. The relationship of these structures with similar nematocytes present in sea nettle medusae is discussed.

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