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Free Content The Morphology and Function of the Frontal Ambulacrum of Moira Atropos (Echinoidea: Spatangoida)

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The functional anatomy of the sunken, frontal ambulacrum of the burrowing sea-urchin, Moira atropos (Lamark), is presented. Several features are described for the first time, including:

a) Division of labor in the fasciolar clavules;

b) Special clavule-like spines for which a new term, “cordyles,” is proposed;

c) Ramified plates on the actinostome for the cleaning of the oral tube feet, for which the term “oral rakers” is proposed;

d) A mucus rope used as a feeding mechanism.

Document Type: Research Article

Publication date: January 1, 1963

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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