A fire worm with a sheltered life: studies of Benthoscolex cubanus Hartman (Amphinomidae), an internal associate of the bathyal sea-urchin Archeopneustes hystrix (A. Agassiz, 1880) Model Digital Document Emson, Roland H. Young, Craig M. Paterson, G. L. J. Publisher Taylor & Francis Group Member of HBOI Faculty Contributions