Schemes including Ambystoma opacum

• Amphibian Species of the World 5.6 Ambystoma opacum
• IUCN Red List of Threatened Species. Version 2012.1 Ambystoma opacum
• Amphibiaweb. 2012 Ambystoma opacum
• Amphibian Species of the World 5.5 Ambystoma opacum
• IUCN Red List of Threatened Species. Version 2012.2 (59065) Ambystoma opacum
• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.104610) Ambystoma opacum
• GBIF (2432006) Ambystoma opacum
• Amphibian Species of the World 6.0 Ambystoma opacum