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Authority

B.Leadb. (Leadbeater, 1972e: 205, figs 1d, 20, 21)

Class

Craspedophyceae/Choanoflagellida

Order

Choanoflagellida

Family

Acanthoecidae

Additional References

Buck & Garrison (1983: 1264, fig. 30), Thomsen et al. (1990: 374, figs 33–36)

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Basionym

N/A

Synonyms

Campanoeca pedicellata (B.Leadb.) Throndsen (1974: 110, fig. 30)

Description

Cells solitary or in colonies. Lorica to 45 µm long (including pedicel); lorica chamber 18–28 µm long, 15 µm diameter; longitudinal costae 12–17; transverse costae 3. Longitudinal costae each comprising 4–5 costal strips; anterior strip of each costa projects as a spine beyond the anterior transverse costa. Costal strips of transverse costae thicker than those of longitudinal costae, or at least thickened in their middle. Pedicel, when present, formed posteriorly from convergence of 7 longitudinal costae and c. 3 costal strips, sometimes longer than lorica chamber. Protoplast obovoid, to 6 µm long, at posterior end of lorica.

Distribution

Oceanic and inshore sites of Prydz Bay, East Antarctica; deep (100 m) under-ice stations and surface open-water stations in the Weddell Sea (Buck & Garrison, 1983); North Atlantic (Throndsen, 1974).

Comments

N/A

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