fertilizing them. Stonefish eggs are fairly large, with young fish hatching well developed. The mating system of the reef stonefish is promiscuity, as the female will not discriminate between which males can lay their sperm on the egg layer. Sexual dimorphism is apparent in reef stonefish, with females being larger than males. References External links Synanceia verrucosa. Integrated Taxonomic Information System. verrucosa Venomous fish Fish of the Red Sea Fish described in 1801