Fig. 7 in Polysyncraton (Ascidiacea, Didemnidae): a re-examination of some specimens and descriptions of three new species

Fig. 7. Polysyncraton globosum Oliveira & Rocha sp. nov., Australia (NHM 1866.3.21.21). a. Preserved colony. b. Spicules. c. Thorax (big arrow indicates the lateral thoracic organ and small arrows the muscle fibers present on each side of the thorax). d. Abdomen. e–f. Larva stained with hemalum (the arrows in f indicate the membrane of the tail). Scale bars: b = 10 µm; c–d = 0.1 mm; e–f = 0.2 mm.