Pseudoloculus (False)

A false pseudoloculus is a chambered areola, similar to a pseudoloculus, that opens to the valve exterior through a large foramen and is covered on the valve interior by a type of velum. Plural is false pseudoloculi. Typically, false pseudoloculi are irregular in outline, are distributed irregularly across valve face, and have vela with varying numbers of pores.

Example genera with false pseudoloculi include Pseudictyota, Ralfsiella, and Dictyoneis

See also areola, loculus, and pseudoloculus.

Pseudictyota reticulata 014
Image Credit: Matt Ashworth
External view of Pseudictyota reticulata (SEM). False pseudoloculi are shown by the irregular foramina on the outside of the chambers. Scale bar = 5 µm.
Pseudictyota dubia 05
Image Credit: Matt Ashworth
External view of Pseudictyota dubia (SEM). False pseudoloculi are shown by the irregular foramina on the outside of the chambers. Scale bar = 10 µm.