Porella regularis ( REUSS , 1874)
publication ID |
https://doi.org/ 10.5281/zenodo.13344847 |
DOI |
https://doi.org/10.5281/zenodo.13227628 |
persistent identifier |
https://treatment.plazi.org/id/316187B2-5322-FFBF-04BA-FF722E9FF977 |
treatment provided by |
Felipe |
scientific name |
Porella regularis ( REUSS , 1874) |
status |
|
Porella regularis ( REUSS, 1874) View in CoL
Pl. 85, Fig. 1-5
v. * 1874 Lepralia regularis m. – Reuss p. 168, Pl. 2, Fig. 1
1974 Hippadenella regularis ( REUSS, 1874) – David and Pouyet p. 177, Pl. 10, Fig. 5 (cum syn.)
T y p e: Lectotype stored in the Natural History Museum Vienna under the number 1878.11.60 ( David and Pouyet, 1974)
M a t e r i a l: Altogether 19 specimens were studied, most of them with preserved ovicells.
D i a g n o s i s: Colony encrusting, rarely forming a multilayer masses. Autozooecia oval with 18-20 marginal areolar pores. Frontal wall convex, with slightly visible radial ribs. Primary orifice with a small lyrula. No oral spines. Avicularia adventitious, suboral, small with pivotal bar. Ovicell slightly immersed, globular, frontal wall not perforate.
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 . Ovicells were not known in this species until now. One studied specimen shows ovicells, with an endoecium at the proximal edge of the ovicell.
The type specimen shows a large spatulate avicularium, very similar to those usually developed in the genus Umbonula . Other features are identical with the described material.
Porella nuda ( REUSS, 1874) View in CoL
Pl. 85, Fig. 6
v. * 1874 Lepralia nuda m. – Reuss p. 173, Pl. 6, Fig. 10
1974 Smittina nuda ( REUSS, 1847) – David and Pouyet p. 190, Pl. 10, Fig. 8
1977 Smittina nuda ( REUSS, 1847) – Vávra p. 142
1989 Porella nuda ( REUSS, 1847) View in CoL – Schmid p. 37, Pl. 10, Fig. 3, 8
T y p e: Holotype from Nussdorf stored in the Natural History Museum Vienna under the number 1878.11.79 ( Vávra, 1977).
M a t e r i a l: Altogether 4 specimens were studied, but only one of them is well preserved.
D i a g n o s i s: Colony encrusting. Autozooecia elongate, hexagonal with a convex frontal wall and large marginal areolar pores. Lateral walls visible. Aperture oval. Suboral avicularium small, hidden inside the aperture. Ovicell not known.
R e m a r k s: Differs from Porella circumornata ( REUSS, 1847) in its convex frontal wall, visible lateral walls and an oval aperture.
T |
Tavera, Department of Geology and Geophysics |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.