* Body shape: Males tend to have a larger, more robust body shape than females. Their heads are also typically larger and more square-shaped.
* Dorsal fin: The dorsal fin of a male gold severum is usually longer and more pointed than the dorsal fin of a female.
* Anal fin: The anal fin of a male gold severum is typically shorter and more rounded than the anal fin of a female.
* Genital papilla: The genital papilla is a small, fleshy projection located near the anus. In males, the genital papilla is typically longer and more pointed than in females.
It is important to note that these are just general guidelines. There is some variation in the physical appearance of gold severums, so it is not always possible to tell the sex of a fish with 100% certainty.