What type of shark is this?

This is what a soupfin looks like. 100 % that’s what you caught.

You’re probably right, but how to tell a soupfin from a smoothhound? I caught one (or the other) in that same area a couple years ago and thought it was a smoothhound. If I actually catch a soupfin, I might keep it, so would like to know how to distinguish them.

Eat it.  If it stays down, it's probly a soupfin.

Bouché

This is what a soupfin looks like. 100 % that’s what you caught.

You’re probably right, but how to tell a soupfin from a smoothhound? I caught one (or the other) in that same area a couple years ago and thought it was a smoothhound. If I actually catch a soupfin, I might keep it, so would like to know how to distinguish them.

Eat it.  If it stays down, it's probly a soupfin.

Bouché

Sound advice, as always!

Soup fins easily identified by their slender bodies and long snouts, their small second dorsal fins and the large lobe on the upper sections of their tails.
The narrownose smoothhound shark has a slender body, similar in form to other triakids, and a short head with large eyes. The snout is bluntly angular and there is narrow distance between nostrils. Narrownose smoothhounds are gray with numerous small white spots on their dorsal side and solid white coloration underneath. The trailing edges of both dorsal fins have exposed ceratotrichia (slender soft or stiff filaments of an elastic protein that superficially resembles keratin), a distinctive characteristic for the species.

Yes I always pay particular attention to the ceratotrichia.  But, that's just me.

Bushy