Sayenko E.M., Nagel K.-O., Palatov D.M.
В журнале Archiv für Molluskenkunde
Год: 2025 Том: 154 Номер: 2 Страницы: 317-327
The morphology of mature larvae (glochidia) of Pseudanodonta complanata is described using scanning electron microscopy. In river basins of Germany and Russia, mature glochidia of P. complanata were recorded from July to late April. Mature glochidia are hooked and large, not less than 280 µm high and 390 µm long. A single styliform hook, up to 160 μm long, at the ventral tip of each glochidial valve is covered by lanceolate microstylets, each up to 20 µm. The glochidial shell is characterized by the broad and slightly protruded anterior and posterior margins covered with distinct comarginal lines, running paral- lel to the valve edge. The external sculpture of glochidial shells is a consistent character and comprised of loose-looped folds distributed over the entire surface of the valves.
