Authenticated (6/9/02) by Professor Paul Skelton. Managing Director, South African Institute of Aquatic Biodiversity (SAIAB) http://www.saiab.ru.ac.za/
Glossary
Anal fin: in fish, an unpaired fin on the under surface of a fish, behind the anus.
Barbels: fleshy projections near the mouth of some fish.
Dorsal fin: in fish, the unpaired fin found on the back of the body.