ancestrula

ancestrula

[‚an′ses·trə·lə]
(invertebrate zoology)
The first polyp of a bryozoan colony.
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References in periodicals archive ?
The position relative to the colony edge and, where possible, the ancestrula was noted for each zooid suitable for analysis, but in M.
On metamorphosis and ancestrula formation in cyclo-stomatous bryozoans.
Bryozoans grow by asexual reproduction of modular units, zooids, from a sexually produced individual, the ancestrula.
Las colonias no se encuentran bien conservadas en ambos especimenes, ni se aprecian las ancestrulas (FIGURA 2, 3 y 4A).