Fig. 4
Photomicrographs of Thelohanellus gonionoti n. sp. from the fin of Barbonymus gonionotus. (A) Plasmodium (white arrow) of T. gonionoti under the dermis partially covering the fin ray and the interlepidotrichial ligament. (B) Spore in frontal view with the presence of an iodinophilous vacuole (iv) within the sporoplasm. (C) Spore in sutural view. (D) Histological transverse section of the tail fin showing a plasmodium (P) located between the interlepidotrichial ligament (ie) and the dermis (d), and bulging toward the epidermis (ed). (E) Higher magnification of the plasmodium (P) filled with mature spores. Stained with hematoxylin and eosin (H&E). Scale bars represent 10 µm, except (D) 50 µm, and (E) 20 µm.
