Adaptations to tube dwelling in the Bivalvia
Article first published online: 9 OCT 2007
Volume 15, Issue 3, pages 275–297, August 1982
How to Cite
SAVAZZI, E. (1982), Adaptations to tube dwelling in the Bivalvia. Lethaia, 15: 275–297. doi: 10.1111/j.1502-3931.1982.tb00650.x
- Issue published online: 9 OCT 2007
- Article first published online: 9 OCT 2007
Tube-dwelling Bivalvia, which enclose themselves in secondary calcareous envelopes (crypts), evolved polyphyletically within the Gastrochaenacea, Pholadacea and Clavagellacea. The adaptive strategies for maintaining a suitable life position within a soft sediment were the main factor affecting the evolution of these forms. These basic strategies (boring in or cementation to bioclasts; construction of long vertical crypts anchored within the sediment by their own length; elongation and bending of the siphonal extremity of the crypt to reach to the surface after disturbances; passive reorientation by water currents; neo-formation of motile structures) were adopted convergently by representatives of the three superfami-lies. □Mollusca, Pelecypoda, tube dwelling, functional morphology, ecology.