Description
Megathiris detruncata, a small brachiopod, reaches a maximum length of approx. 5mm. The outline of the shell is transversely oval, with a wide, straight hinge-line. Specimens are often wider than long. The external surfaces have a few broad ribs. The shell has small deltidial plates, a large pedicle foramen, and is endopunctate. M. detruncata has a lobed brachial loop, attached at three or five points on the internal surface of the dorsal valve.
Location
M. detruncata is known from the Western Approaches and from around Guernsey. Elsewhere it has been collected from the Mediterranean.
Depth
Megathiris detruncata occurs at depths of 37 to 896m.
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