Fig. 3. Ventral view of pelvic fin (A), dorsal view of head (B) and ventral view of belly (C) in Rhinogobius yaima (OMNH-P 43686, paratype, male, 60.6 mm SL), stained with Alizarin Red S. White line indicates the most proximal segment of all branches in the fifth segmented ray. Black wedge indicates slits between branches. Black circles with black letters H', K', and L' indicate sensorycanal pores. Letters P1, P2, and P3 indicate anteriormost point of anterior extension of scaly area along predorsal midline, anteriormost point of anterior extensions of scaly area on temporal region, and most concaved point of scaly area between P1 and P2, respectively. Photographed and annotated by T. Suzuki.