immobile cell
The genus Amphidinium (am-fee-din-ee-um) testudo is a commonly encountered and speciose member of the dinoflagellates. There is a circumferential groove on the cell surface that runs around the anterior half of the cell, and a second one running along the length of the body. There is a flagellum in each groove. The asymmetrical location of the horizontal groove gives this genus its name (cf. Gymnodinium). This is an atypical member of the genus, encountered adhering tightly to the substrate. The recurrent flagellum usually located under the cell. There is a second image of this cell showing the recurrent flagellum. The anterior flagellum is located around the very reduced epicone, or anterior part of the body. Differential interference contrast. This picture was taken by David Patterson, Linda Amaral Zettler and Virginia Edgcomb of materials from sediments of the marine site, Eel Pond in Austumn 2000, spring and summer 2001. Image copyright: D. J. Patterson, L. Amaral-Zettler and V. Edgcomb, image used under license to MBL (micro*scope).
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Amphidinium testudo
From the collection
Eel Pond, Woods Hole, Massachusetts
No description of Amphidinium testudo available.
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