Meanings
- not comparableanatomyRelating to, or having, a cleithrum.
As none of the ovicells were observed to be closed by the operculum, presumably because they were empty and the opercula were resting on the primary orifice rim, the ovicell closure type is subcleithral rather than cleithral [51 ], at least in some species of the genus.
2015 October 22, “Diversity and Systematics of Schizomavella Species (Bryozoa: Bitectiporidae) from the Bathyal NE Atlantic”, in PLOS ONE, →DOI - not comparablearchitectureHaving a roof that forms a complete covering.
Origin
Cite this entry
cleithral. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/cleithral
“cleithral.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cleithral. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “cleithral,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/cleithral.
Source: cleithral on Wiktionary, CC BY-SA 4.0.