New Contribution to the Morphology and Taxonomy of Four Marine ...

156 W. Song et al.
Figs 46-51. Photomicrographs of Holosticha heterofoissneri from life (46-49) and after protargol impregnation (50, 51). 46 - ventral view of
a typical individual; 47 - to show the extrusome-like cortical granules (arrowheads); 48, 49 - details of cortex, to show the cortical granules
(arrowheads); 50 - ventral view of infraciliature; arrow marks the transverse cirri, while arrowhead indicates the gap between the anterior and
posterior parts of the adoral zone of membranelles; 51 - general view of infraciliature on ventral side; double-arrowhead mark the midventral
rows which extend completely to the posterior end of the body; note the gap in the adoral zone of membranelles (arrowhead)
when observed at high magnification. Granules of type
2 (possibly mitochondria) are colourless, blood-cellshaped,
ca µm across, densely packed and positioned
somewhat deeper beneath the cell surface than type 1
granules (Figs 10, 12, 44).
Cytoplasm often containing numerous light-reflecting
globules (3-6 µm), which are colourless or slightly yellowish.
Contractile vacuole small, located on left in
anterior 1/3 to 2/5 of cell length (Figs 16, 17). Food
vacuoles not observed. About 100 macronuclear nod-