Regularia

Reg`u`la´ri`a

(rĕg`ũ`lā´rĭ`å)

n. pl.

(Zool.) A division of Echini which includes the circular, or regular, sea urchins.

Regularia

[‚reg·yə′lar·ē·ə] (invertebrate zoology) An assemblage of echinoids in which the anus and periproct lie within the apical system; not considered a valid taxon.

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