Figure 4. – Orsinogobius croaticus. A in Early development of the freshwater goby Orsinogobius croaticus endemic to Croatia and Bosnia-Herzegovina

Figure 4. – Orsinogobius croaticus. A: Upon hatching; B: Detail of head and open mouth, day 2 post-hatching (PH); C: Developing pigmentation, day 5 PH; D: Digestive tract filled, day 7 PH; E: Detail of tail fin, with fully bent urostyle, day 12 PH; F: Second dorsal and anal fins fully developed, day 20 PH; G: Skin less transparent as pigmentation spreads, day 28 PH.