Submitted by islandbarb on Thu, 11/15/2012 - 19:08.
I'm going to say it is a Cocoa Damselfish because the dorsal fin spot appears to be on both the dorsal fin and the body. The Beaugregory dorsal fin spot is only on the dorsal fin and doesn't run on to the body area. It also looks to have the little black spot (of "cocoa") on the tail base, which means it's a Cocoa Damselfish. (That's how I remember).
If it's got a spot of "Cocoa", it's a Cocoa Damselfish
I'm going to say it is a Cocoa Damselfish because the dorsal fin spot appears to be on both the dorsal fin and the body. The Beaugregory dorsal fin spot is only on the dorsal fin and doesn't run on to the body area. It also looks to have the little black spot (of "cocoa") on the tail base, which means it's a Cocoa Damselfish. (That's how I remember).
Just a snorkeler-Island Barb
Spectacular answer
Perfect answer. Granted the differences are very subtle, but you clearly stated them and fully answered the question. Brava!
I am selecting, copying and pasting your explanation to keep for when I (inevitably) forget.
Thank You,
Marty