Authenticated (01/11/2005) by Nick Whitney, Graduate Researcher, University of Hawaii http://whitetip.hawaii.edu
Glossary
Caudal fin: the tail fin of a fish, used for steering, balancing or propulsion.
Dorsal fin: in fish, one of the unpaired fins found on the back of the body.
Nocturnal: being active at night.
Pectoral fins: in fish, the pair of fins that are found one on each side of the body just behind the gills. They are generally used for balancing and braking.
Viviparous: giving birth to live young, which have already reached an advanced stage of development.