Metaxia rugulosa var. exilissima Monterosato, 1884
Metaxia rugulosa var. exilissima Monterosato, 1884: 125 .
Type locality. Not stated [Mediterranean].
Type material. Type material not located so far.
Remarks. Bouchet (1985) considered this species a junior synonym of Metaxia metaxa (Delle Chiaje, 1828) .