Additional information
provided by World Register of Marine Species
Gale (2015) conducted a review on this genus.
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Diagnosis
provided by World Register of Marine Species
Inframedian latus waisted, hourglass-shaped, umbo central to nearly basal. Well-defined margins contact the scutum and upper latus. Contact between carinolatera usually flat, symmetrical. Rostrum tiny, oval, or rarely absent. Apex of scutum, acuminate, incurved. Upper latus overlaps scutum, fitting into notch in scutum. Scutum trapezoidal, basal–occludent angle about 80°, tergal–upper latus angle 100–115°.
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Habitat
provided by World Register of Marine Species
Known from seamounts and knolls
Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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