Fig. 10. Polysyncraton purou C. Monniot & F. Monniot, 1987 in Polysyncraton (Ascidiacea, Didemnidae): a re-examination of some specimens and descriptions of three new species

Fig. 10. Polysyncraton purou C. Monniot & F. Monniot, 1987, with structures stained with hemalum (MNHN A2-843). a. Zooid with bifurcated atrial languet (arrow). b. Thorax with button-like atrial languet (big arrow) and muscular process (small arrow). c. Abdomen with gonads (large arrow indicates oocyte). d. Immature larva. e. Mature larva. Scale bar: 0.1 mm.