Characters: This species and genus is known from a single specimen. It is hemispherical and submeandroid with groups of septa fused into monticules. Septa are thin and compact.
Colour: Not recorded.
Similar Species: The merulinid Boninastrea boninensis.
Habitat: Not recorded.
Abundance: Possibly extinct.
Taxonomic Note: The type species of Montigyra Matthai, 1928. Very distinct species. Known only from the holotype and now possibly extinct.