At a smaller scale, an uplifted vermetid bench, which indicates vertical movement of about 80 cm, is dated to the sixth century A.D. Continued uplift above this thrust since the late Miocene may explain the formation of the Mount Lebanon range.
C. tubularis and its sister species, C. verrilli, are the only hermit crabs known to show sexual dimorphism in shell choice, with males using normal marine gastropod shells, while females use shells of gastropods in the family Vermetidae, which are attached to rocks or other hard substrates.
However, the second definition refers to a mollusk (Vermetidae), and a third definition refers to a
Empty serpulid shells can sometimes be confused with the shells of a family of marine gastropod mollusks, the Vermetidae.
The empty calcareous tubes of certain marine annelid tube worms, for example the Serpulidae, can sometimes be casually misidentified as empty vermetid shells, and vice versa.