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Free Content A Benthic Invertebrate from the Mid-Atlantic Ridge

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About 100 deep-sea photographs revealed discoidal shaped objects several centimeters in diameter with marked hexagonal symmetry lying on sediment-covered step-like levels of the wall of the rift valley of the Mid-Atlantic Ridge at latitude 26°N between depths of 3200 and 3700 m below sea level. The characteristics of the discoidal shaped objects, including the symmetry and inferred individual growth stages, are closest to compressed forms of a hexactinelid sponge adapted to an unconsolidated sediment substrate.

Document Type: Short Communication

Publication date: 1978-04-01

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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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