Dart formation in nematocysts of the sea anemone Metridium senile (Linnaeus, 1761) (Cnidaria: Anthozoa)
In examining large acontia b-mastigophore and p-amastigophore nematocysts of the sea anemone Metridium senile (Linnaeus, 1761) darts were observed by interference-contrast light microscopy (LM) and scanning electron microscopy (SEM). The darts consist of closely packed spines detached from the shaft...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Consejo Superior de Investigaciones Científicas
2010-09-01
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Series: | Scientia Marina |
Subjects: | |
Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1178 |
Summary: | In examining large acontia b-mastigophore and p-amastigophore nematocysts of the sea anemone Metridium senile (Linnaeus, 1761) darts were observed by interference-contrast light microscopy (LM) and scanning electron microscopy (SEM). The darts consist of closely packed spines detached from the shafts, still in three helical rows. Their spines form a hollow cylinder with a sharp tip and indented base, its width similar to that of an undischarged shaft but varying in length. b-mastigophore darts were more common than those of p-mastigophores and many were longer. |
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ISSN: | 0214-8358 1886-8134 |