Valvocopula

Valve view

 

Velum

The copula, or girdle band, in direct contact with the valve. Accessory structures such as septa or partecta arise from the valvocopula.

See also cingulum.


Alternative Term

first girdle band

Citations

Round, F.E., Crawford, R.M. and Mann, D.G. (1990). The Diatoms. Biology and Morphology of the Genera. Cambridge University Press, Cambridge, 747 pp.