Crithionina Goës 1894

Crithionina, en ocasiones erróneamente denominado Arcrithionum, es un género de foraminífero bentónico de la subfamilia Crithionininae, de la familia Crithioninidae, de la superfamilia Saccamminoidea, del suborden Saccamminina​ y del orden Astrorhizida.​​ Su especie tipo es Crithionina mamilla. Su rango cronoestratigráfico abarca el Holoceno.

Test attached, commonly to other foraminifers, a single subspherical to hemispherical chamber that may be incompletely divided internally by an inward growing partial septum; wall thick, of agglutinated fine sand, sponge spicules, and foraminiferal tests, surface roughly finished, in part as the result of dislodgement of some of the larger particles; no apparent aperture in globular individuals, but a few may have a rounded aperture at the end of a tubular projection from one side, perhaps as a temporary development in ontogeny. Holocene: Atlantic; North Sea; Caribbean; Pacific. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)