Littorinimorpha
A Littorinimorpha san en grat order faan Sia-Sneken (Gastropoda). Man diar hiar uk enkelt Lun-Sneken mä tu.

Auerfamilin 
Calyptraeoidea – Capuloidea – Cingulopsoidea – Cypraeoidea – Ficoidea – Littorinoidea – Naticoidea – Pterotracheoidea – Rissooidea – Stromboidea – Tonnoidea – Truncatelloidea – Vanikoroidea – Vermetoidea – Xenophoroidea

Luke uk diar 

Sneken