dcsimg

Diagnosis

provided by World Register of Marine Species
A family of Tropiometracea with conspicuous side and covering plates; P1 and P2 similar, more slender and flexible than following pinnules and composed of a large number of short segments; cirri short, stout, and strongly curved, of usually fewer than 25 cirrals; distal cirrals little, if at all, shorter than proximal cirrals; aboral processes absent or present as low keels or tubercles; transition segment lacking.
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