On a trip to the Shark River, our main river here in Trinidad, a friend and I were working our way up, fishing the rapids and pools, trying to catch what we call a river mullet. I caught this fish in a pool a mile or so upstream. It's referred to locally as a river parg, freshwater grunt or river snapper, but no one can actually tell me what these are.
I have caught them before, at or near river mouths. I caught this 1½-pounder on a live crayfish, free-lined, after the fish refused several artificial offerings.
I noticed it made croaking noises when I held it. Also, it had no prominent canines, or any teeth, for that matter, and it had rubbery lips. I released it safely back into the pool to meet the three others living there.
I went to our Institute of Marine Affairs, and they sent the fish to the University of the West Indies — which wrongly identified it as a gray snapper. (I have caught hundreds of grays, and this isn't one). I really hope you can help identify this little guy for me.