Still having trouble differentiating among squirrelfish

P6120357, 72ppi.jpg

I am still having trouble differentiating among squirrelfish.  Is this a lonspine squirrelfish?  What are the distinguishing characteristics?

June 12, 2011, Molasses Reef, buoy M-21, Key Largo, Florida, 28-feet deep, bottom temperature about 81 degrees Fahrenheit.

Thank You,


Longspine Squirrelfish

Yes, that's a Longspine Squirrelfish, Holocentrus rufus. The white outer edge of the dorsal fin is a good characteristic. The Squirrelfish, H. adscensionis, usually has more silver on its body and has a yellowish dorsalfin.


Thank you.

I don't know how the picture ended up upside down; it is not how I uploaded it.

Thank you for the ID and the explanation.  I will catch on ... eventually.


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