Porella circumornata ( REUSS , 1847)
publication ID |
https://doi.org/ 10.5281/zenodo.13344847 |
DOI |
https://doi.org/10.5281/zenodo.13227626 |
persistent identifier |
https://treatment.plazi.org/id/316187B2-5322-FFBF-079A-FB4A2C0BF7B3 |
treatment provided by |
Felipe |
scientific name |
Porella circumornata ( REUSS , 1847) |
status |
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Porella circumornata ( REUSS, 1847) View in CoL
Pl. 84, Fig. 1-5
v. * 1847 Cellepora circumornata m. – Reuss p. 85, Pl. 10, Fig. 11
1977 Smittina circumornata ( REUSS, 1847) – Vávra p. 141 (cum syn.)
1989 Escharella? circumornata ( REUSS, 1847) – Schmid p. 37, Pl. 10, Fig. 7
T y p e: Holotype from Nussdorf is stored in the Natural History Museum Vienna under the number 1878.11.80 ( Vávra, 1977).
M a t e r i a l: Altogether 7 specimens were studied from different sections.
D i a g n o s i s: Colony encrusting. Autozooecia hexagonal to oval with a flat frontal wall and very large marginal areolar pores. Aperture semilunar with straight proximal margin. Suboral avicularium small, hidden inside the aperture. Ovicell deeply immersed, with flat frontal wall.
R e m a r k s: Due to the presence of a small lyrula, a suboral avicularium and the absence of oral spines this species is listed under Porella GRAY, 1847 (as understood among others by Gordon, 1984 and Hayward and Ryland, 1999).
This species differs from Porella regularis ( REUSS, 1874) mainly due to the deeply immersed ovicell and the slightly larger avicularia.
The type has a very well developed lyrula and a slightly smaller ovicell than the described material. Other features are identical.
T |
Tavera, Department of Geology and Geophysics |
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