|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Rissoidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|T. Kowalke and M. Harzhauser 2004||The subgenus Manzonia differs from the subgenus Alvinia by teleoconch whorls narrowing towards the aperture, thus separated by deep sutures and by a teleoconch sculp− ture of prominent, rounded, strongly opisthocline axial ribs crossed by much weaker spirals.|