Gymnophiona

• Kids and Teens: Science and Math: Science: Living Things: Animals: Reptiles and Amphibians: Amphibians: Caecilians 

• About Caecilians (Order Gymnophiona)  - Presents unique features and characteristics. With links to related sites.
• Amphibian Species of the World Gymnophiona Muller, 1831  - Presents data on synonymy, English names and distribution of member species.
• Animal Diversity Web Order Gymnophiona (Caecilians)  - Presents a taxonomic listing for this amphibian group.
• Biology Browser: Gymnophiona  - Furnishes information on this amphibian group and its subgroups.
• Earthlink.net Order Gymnophiona (Apoda)  - Presents a listing of member species. With references.
• Gymnophiona Caecilia Apoda General Links  - Provides a listing of families and member species.
• Gymnophiona: Herpetology  - Offers links to images of member species.
• Histology of the Trachea and Lung of Siphonops annulatus (Amphibia, Gymnophiona)  - Gives abstract of study by Kuehne, B. and Junqueira, L.C.U. with links to full text or PDF versions.
• InfoNatura Species Index Families in Order Gymnophiona  - Provides a listing of member species. With links.
• Innvista.com Gymnophiona  - Provides a listing of member species.
• ITIS Report: Gymnophiona  - Details taxonomic data, references, comments, and off-site resources.
• Kinds of Gymnophiona Caecelians of the World  - Offers a listing of member species.
• Mexico Herpetology Gymnophiona  - Information on member species found in the area. With images.
• Mikko's Phylogeny Archive Gymnophiona Caecilians  - Presents a taxonomic tree for this amphibians. With references.
• University of Texas at Arlington Gymnophiona  - Offers images of member species.
• Zoo Lab: Caecilians (Order Gymnophiona)  - Short article looks at number of species, locations, habitats, diet, and reproduction. Includes picture.