Yliopistot ja instituutit

• Animal Diversity Web (University of Michigan, Museum of Zoology)
• Index to organism names
• Tarton yliopisto esittelee kaikki Eestin selkärankaiset, myös herpit.

Sammakkoeläimet

• Frost, D.R.: Amphibian species of the world. (American Museum of Natural History; Department of Herpetology)
• Amphibiaweb. (University of California, Berkeley)
• Indiana University Axolotl Colony
• The Whole Frog (Lawrence Berkeley National Laboratory)

Matelijat

• The TIGR Reptile Database (ent. EMBL-database)
• Turtles of the World (University of Oregon)
• King & Burke: Crocodilian, Tuatara and Turtle species of the world. (Florida Museum of Natural History)
• The Pigmy Rattlesnake Research Group (Stetson University)
• Archie Carr Center for Sea Turtle Research, University of Florida.