Kulichová, J.,
Hindáková, A.
(2024).
Crenotia.
In Diatoms of North America.
Retrieved May 01, 2026, from https://diatoms.org/genera/crenotia-2?x-craft-preview=409442409a997390693ff24c7010fd6f1c96fb56f8f091fa016a63de9a54aaccecpiqubknd
Monoraphid
Crenotia
Frustules heterovalvar, with concave raphe valve and convex rapheless valve
Striae uniseriate to biseriate (zig-zag pattern in SEM)
Rapheless valve without, or with, rimmed depression
SPECIES OF CRENOTIA ARE NOT KNOWN TO OCCUR IN NORTH AMERICA (YET)
The frustules of Crenotia
are heterovalvar, with slightly to strongly concave raphe valve (hypovalve) and convex rapheless valve (epivalve). The valves are lanceolate, linear-lanceolate, elliptic-lanceolate and the small cells are elliptic. Some species have a gibbous...