Summary: | FIGURES 15–19: SEM images of Aulacoseira principissa. All pictures taken from the holotype population (sample BW390). Fig. 15: Chain of two entire frustules showing the linking spines, parts of the girdle bands and Ringleiste. Fig. 16: Frustule still enclosed in the (eroded) girdle bands. Note the fine pores in the girdle. Fig. 17: Two valves linked with bifurcated linking spines. Fig. 18: Valve showing linking spines, absence of sulcus (see arrow), parallel striae with rounded to square areolae and mantle plaques. Fig. 19: Detail of valve mantle with plaques. Scale bar represents 1 µm except for Fig. 15 where scale bar = 10 µm. Published as part of Vijver, Bart Van De, 2012, Aulacoseira principissa sp. nov., a new 'centric' diatom species from the sub- Antarctic region, pp. 33-42 in Phytotaxa 52 (1) on page 37, DOI:10.11646/phytotaxa.52.1.5, http://zenodo.org/record/10087326
|