Fig. 4 in Nodularia vladivostokensis (Bivalvia: Unionidae) from Razdolnaya River (Primorye, Russia)

Fig. 4. Transverse sections of the mollusk's foot: А, Б – fibers of mesentery extending from the foot musles through gonad into the visceral mass; В – musles under the pedal integument, Г, Д – nerve. Scale bars 300 µm (А, В, Г), 100 µm (Д), 40 µm (Б). а – acini, м – mesentery, пг – cavities (sinuses) for hemolymph, эп – perineurium, ф – follicles.