Guess the brackish water fish

[rweedon]

looks to be some kind of squirrelfish is this open to saltwater too?

 

[guppy]

Okay it is of the gerreidae family, give me a few more minutes

 

[guppy]

Got it, saddleback silver-biddy from coastal brackish areas in Indo-Pacific, (Gerres limbatus),

 

[sandtiger]

Nope, your wrong

 

[sandtiger]

Here is a hint, mine is around South America.

Your's guppy, is found in the Indo-West Pacific.

Here is another picture.

It also might help to look at things like the spines and other normally over looked characteristics.

 

[guppy]

I can't see these pics well enough and the one pic I think matches yours won't let me enlarge it so now that I have made my excuses and stopped whining how about another mojarra? the Eucinostomus lefroyi?

 

[sandtiger]

These were the only pictures I could find. Your still wrong though. Do you want a hint?

 

[guppy]

yep, I need a hint!

 

[sandtiger]

Grows to about 7".
The second anal spine is the longest .
The inside of the gill cover is not black.

 

[guppy]

Well, I never got to take a taxonomy course and am self taught, I do not know if in your count you include rays as well as spines or if you include the little stubby anal spine that barely breaks the skin. No where did I find a mention of the color of any mojarra's gill covers. You do know that the only difference above the molecular scale on some of the sculpins is the # of gill arches or pharangeal teeth? I avoid using fish that rely on internal differences for ID.
The one clue that did help was size so I will guess BigEyed Mojarra (Eucinostomus havana)
I was not able to find even one picture other than a single line drawing, where did you find your pics?