- extraconic
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adj. [L. extra, outside; Gr. konos, cone]Almost conical, but with concave sides; see coeloconoid.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
coeloconoid — adj. [Gr. koilos, hollow; konos, cone; eidos, form] Approaching conical but with concave sides; extraconic; see conoid, cyrtoconoid … Dictionary of invertebrate zoology