Figure 11

Crenubiotus crenulatus s.s. (Richters, 1904) from Spitsbergen: eggs seen in PCM. (a–c) Details of egg processes and surface under a ×1000 magnification, upper inserts shows details of the ‘reticulation’ present in egg processes of a given egg. (d) Midsections of egg processes under a ×1000 magnification. Filled flat arrowheads indicate divided tips of the processes, filled indented arrowheads indicate faint septae, empty flat arrowheads indicate short thickenings/projections around processes bases, empty indented arrowheads indicate thickenings within the processes walls between main and distal parts of the processes, the arrow indicates elongated thickenings/projections around processes the bases. Scale bars in μm, scale bar for inserts in figures a–c are twice as long as those in the main photos.