If anyone on the Saba trip, or in the dive club, is interested in fish ID in the Caribbean or the tropical Eastern Pacific, here's a link to two free apps from the Smithsonian. They're great for studying fish on a plane, or at bedtime! Most parts
of the apps work fine without WiFi, except for the map showing the area in which a particular fish is found. There are several photos for each fish, a detailed description and a location map.
There are versions for both Android and Apple phones.
Callie