First of all, I would like to thank Pucho and Dan for inviting me to this Forum.:; Some of you already know me...
Second, that fish looks a lot like a "Cuna" as is known in my Country (Venezuela) the species Mycteroperca acutirostris aka Comb grouper.
http://www.fishbase.org/Summary/SpeciesSummary.php?id=9386
I haven't seen any of them since I'm living in Puerto Rico (4 years now...). In Venezuela is pretty common and individuals of up to 3 pounds are very easy to spear. A 7-8 pouder is very wary and are real trophys.
Their meat is one of the best I've tried.
On the other hand, I owe a phone call to Straight shaft but i lost your personal info (even your name). I had some problems with my outlook and lost a lot of information. Please send me a PM with your name and numer to set up a fishing trip together. I went out from Santa Isabel two weeks ago and I could call you to join us...