micro*scope - version 6.0

Protaspis (pro-tass-piss) A very common but little studied genus of gliding flagellates, two flagella inserted one in front of the other in a shallow ventral depression near the front of the cell. One flagellum trails behind the cell, one sweeps in front of the cell. There are caps (dictyosomes?) over the nucleus and these can be seen as two lines leading away from the site of flagellar insertion. Protaspis can produce pseudopodia and may eat diatoms. This individual has starchy inclusions. Phase 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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Protaspis

From the collection Eel Pond, Woods Hole, Massachusetts

Description of Protaspis: Thaumatomastigid with flagella inserting subapically on ventral side, no flagellar pocket, flagella equal or subequal. Ventral surface usually grooved, and nuclei often with nuclear caps (= dictyosomes?). May be dorso-ventrally flattened. Appear naked by light microscopy, no ultrastructural studies have been carried out. Type species P. glans, Skuja, 1939.

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Protaspis in other collections

Protaspis gemmifera, from Heterotrophic flagellates of marine habitats	Protaspis glans, from Heterotrophic flagellates of marine habitats	Protaspis major, from Heterotrophic flagellates of marine habitats	Protaspis metarhiza, from Heterotrophic flagellates of marine habitats	Protaspis obliqua, from Heterotrophic flagellates of marine habitats
Protaspis tanyopsis, from Heterotrophic flagellates of marine habitats	Protaspis tegere, from Heterotrophic flagellates of marine habitats	Protaspis verrucosa, from Heterotrophic flagellates of marine habitats	Protaspis gemmifera, from Drawings of flagellates	Protaspis obliqua, from Drawings of flagellates
Protaspis tegere, from Drawings of flagellates	Protaspis verrucosa, from Drawings of flagellates	Protaspis, from ATOL protistology workshop 2005	Protaspis tegere, from ATOL protistology workshop 2005	Protaspis, from Prawn Farm, Queensland, Australia
Protaspis tegere, from Marine microbes - NW Australia	Protaspis, from Ross Sea, Antarctica	Protaspis, from Ross Sea, Antarctica	Protaspis, from Ross Sea, Antarctica	Protaspis, from Lake Toolik, Arctic Alaska
Protaspis gemmigera, from Heterotrophic flagellates of Botany Bay, Sydney, Australia	Protaspis obliqua, from Heterotrophic flagellates of Botany Bay, Sydney, Australia	Protaspis tegere, from Heterotrophic flagellates of Botany Bay, Sydney, Australia	Protaspis verrucosa, from Heterotrophic flagellates of Botany Bay, Sydney, Australia

micro*scope - version 6.0 - March, 2006
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