nematogen

nematogen

[nə′mad·ə·jən]
(invertebrate zoology)
A reproductive phase of the Dicyemida during which vermiform larvae are formed asexually from the germ cells in the axial cells.
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References in periodicals archive ?
In the Dicyemida, two adult forms, the nematogen and the rhombogen, develop asexually from an agamete (axoblast) through a vermiform embryo within the axial cell of parent nematogens (Fig.
Vermiform embryos develop in the confined space of an axial cell located within the pa rent nematogen. This peculiar habitat thus may constrain the developmental process, as well as limit the size and number of cells that compose the body.
Embryos within the axial cell of parent nematogens were observed with the aid of a light microscope under an oilimmersion objective at a magnification of 2000 diameters.
Developmental patterns and cell lineages of vermiform embryos in dicyemid mesozoans

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