Missed out :(

[Peanut_Power]

"There is a slight sexual dimorphism in this species as with all Lugubris group species - the females have a thin white submarginal band on the dorsal fin."

HTH

Actually, in acutirostris its more the back of the dorsal and the caudual fin that gets the white/clear stripes. A little different than the Lugubris pikes... Look for that reddish pink belly too, males won't have that.