Fig. 9 in Fig. 2. Gonadal development during Yntema stages 15, 17, 19 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov.

Fig. 9. Urocardiac ossicles of Austruca perplexa (H. Milne Edwards, 1852) (A–C) and A. citrus n. sp. (D). A, male, CW 13.6 mm (NCHUZOOL 15056), Mersing, Malaysia; B, male, CW 14.2 mm (NTOU), Taitung, Taiwan; C, male, CW 12.5 mm (QM W19270), Queensland, Australia; D, male, CW 11.1 mm (MNHN-IU-2017-9122), Wallis & Futuna. Scale bars = 0.2 mm.