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Plate 1.— Classification: system Marine, subsystem Subtidal, CLASS Rock Bottom, subclass Bedrock, water regime Subtidal, 

 water chemistry Euhaline. This underwater photograph shows colonies of common sea fans (Gorgonia ventaiina) and other 

 gorgonians living on bedrock. Bare rock is visible in the center and lower left corner of the photo. (Monroe County, Florida; July 

 1969; Photo by E. T. LaRoe) 



