Caecilians

Caecilians of Las Cruces Biological Station, Costa Rica - Explains what Caecilians are, and displays photographs.
www.dnr.cornell.edu/edge/Field_guide_caecilians.htm

Caecilians of the World - Describes the biology, natural history and husbandry of caecilians.
www.herper.com/amphibians/caecilians.html