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Description

In this species the main stems are slender and they sometimes divide dichotomously. The side branches are arranged alternately, and often there is secondary branching. The hydrothecae are alternate, one to each internode. They are approximately tubular in shape and the margin bears three denticles. The operculum consists of three triangular flaps. The gonothecae are bell shaped, and taper towards the base, there are conspicuous, deep transverse ridges. The aperature is reported to be funnel shaped with a smooth rim, however this structure is often collapsed in preserved specimens. Similar in overall appearance to Sertularella species.

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Source: Encyclopedia of Marine Life of Britain and Ireland

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