Figure 6 from: Yanwirsal H, Bartsch P, Kirschbaum F (2017) Reproduction and development of the asian bronze featherback Notopterus notopterus (Pallas, 1769) (Osteoglossiformes, Notopteridae) in captivity. Zoosystematics and Evolution 93(2): 299-324. https://doi.org/10.3897/zse.93.13341

Figure 6 - Preferred spawning sites of Notopterus notopterus. (a) The eggs attached to the underside (double arrowhead) and (b) on the edge of a large stone; (c) eggs were also found on the edge of the filter. Scale bar = 20 mm (a); 4 mm (b); 10 mm (c)