Gibberulus gibberulus, common name the humpbacked conch, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs. There are two subspecies : \n* Gibberulus gibberulus albus (Mörch, 1850) \n* Gibberulus gibberulus gibberulus (Linnaeus, 1758): represented as Gibberulus gibberulus (Linnaeus, 1758) (alternate representation) \n* Gibberulus gibberulus gibbosus (Röding, 1798) (synonyms: Gibberulus gibbosus (Röding, 1798); Lambis gibbosa Röding, 1798 (original combination) )