Figs 132–138 in Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species

Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows ind...

Full description

Bibliographic Details
Main Authors: Goeyers, Charlotte, Vijver, Bart Van De
Format: Other/Unknown Material
Language:unknown
Published: 2020
Subjects:
Online Access:https://zenodo.org/record/3973574
https://doi.org/10.5281/zenodo.3973574
Description
Summary:Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm. Published as part of Goeyers, Charlotte & Vijver, Bart Van De, 2020, Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species, pp. 1-30 in European Journal of Taxonomy 694 on page 19, DOI:10.5852/ejt.2020.694, http://zenodo.org/record/3973347