Adult females will exhibit a small genital papilla in front of the anal fin origin.

The space between the pelvic and anal fin origins is greater in males than in females.

The pectoral and pelvic fins are both quite long, with the latter extending almost to the anal fin origin.

The five pairs of gill slits are short, with the fourth pair over the pectoral fin origins.

The dorsal fin is located directly above the anal fin origin.

The first dorsal fin is about a third larger than the second and originates over the pelvic fin origins.

It has a single spot in the opercular area above the pectoral fin origin.

The second dorsal fin is smaller and lower than the first, originating before the anal fin origin.

The position of the dorsal varies slightly among individuals, yet it generally originates anterior to the anal fin origin.

There are five pairs of gill slits, with the fifth pair over the pectoral fin origins.