Any of the following four books might be very helpful:

New World Publications Listings:

Humann's Reef Fish Identification. New World Publications. Jacksonville FL.

Humann's Reef Creature Identification. New World Publications. Jacksonville FL.

Humann's Reef Coral Identification. New World Publications. Jacksonville FL.

Kaplan's Coral Reefs. Peterson Field Guide. Houghton Mifflin Co. New York

Other books of interest:

Kaplan's Southeastern and Caribbean Seashore. Peterson Field Guide. Houghton Mifflin Co. New York

Smith's National Audubon Society Field Guide to Tropical Marine Fishes. (Caribbean, Gulf of Mexico, Floridas, Bahamas, Bermuda). Knopf Co. New York

Lieske and Myer's Coral Reef Fishes: Caribbean, Indian Ocean, and Pacific Ocean Princeton University Press, Princeton