Aglaophenia divaricata [(Busk, 1852) ]

Aglaophenia divaricata (Busk, 1852)

Aglaophenia divaricata

General description:

Three distinct ‘sub-types’ are noted: maccoyi, briggsi and cystifera. Their distinguishing features are as follows:

A. maccoyi: Stem medium length, approx. 4 cm. Colonies lightly fascicled, branched. Mesial nematothecae twice length of hydrotheca, orifice lobed. Cauline nematothecae normal size and shape. Marginal teeth sharp and deep. Habit epiphytic.

A. briggsi: Stem short in length, approx. 1.5 cm. Colonies unfascicled, unbranched. Mesial nematothecae to hydrothecal margin, orifice round to lobed. Cauline nematothecae normal size and shape, facing posteriorly. Marginal teeth sharp and deep. Habit epiphytic-epizoic.

A. cystifera: Stem large, approx. 10 cm. Colonies fascicled, branched in 1 plane. Mesial nematothecae to hydrothecal margin, orifice round. Cauline nematothecae large, ovate. Marginal teeth wide and shallow. Habit epilithic.

Sat, 2016-01-02 15:05 -- Jeanette Wilson
Aglaophenia divaricata

General description:

Cells cup-shaped, long, slightly contracted at bottom; mouth circular; margin sub-expanded, dentate, with three nearly equal upright teeth on each side, and a long, round pointed central tooth in front.

Rostrum narrow at bottom, closely adnate, scarcely rising higher than the central tooth; lateral processes small, closely adnate.

Colour light to dark brown.

Distribution:

Southern Australia (New South Wales, South Australia, Tasmania, Victoria, Western Australia).

Habitat:

Subtidal, epiphytic on algae and epizoic on benthic invertebrates.

Sat, 2016-01-02 15:05 -- Jeanette Wilson

Cnidaria

Taxon

Aglaophenia divaricata (Busk, 1852)

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Aglaophenia divaricata

Aglaophenia divaricata

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Taxon

Aglaophenia divaricata (Busk, 1852)

Primary tabs