Excavation of Boreholes by the Gastropod,<i>Urosalpinx</i>: An Analysis by Light and Scanning Electron Microscopy

Abstract

Penetration of shell by the muricid gastropod, Urosalpinx cinerea follyensis, is accomplished by successive alternating periods of (a) chemical activity by the accessory boring organ (ABO) , and (b) rasping by the radula. This paper reports on the functions of the radula and of the ABO in producing the characteristic geometry of the borehole, andon the effects of radular teeth and of the ABO secretion on the microscopic anatomy of the surface of the borehole during the process of shell-boring.