Amphibian

Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. All extant amphibians belong to the monophyletic subclass Lissamphibia, with three living orders: Anura (frogs and toads), Urodela (salamanders), and Gymnophiona (caecilians).

• Poor Tom, that eats the swimming frog, the toad, the tadpole, the wall newt, and the water.
  • William Shakespeare, King Lear, III, iv

• Toward misted and ebullient seas
  And cooling shores, toward lost Amphibia’s emperies.
  • Richard Wilbur, "The Death of a Toad", in Poetry (February 1948)

• Salamander in his dripping cave
  Satanic ebon-amber;
  ... Eft of cumbrous gait,
  And toads who love rank grasses near a grave.
  • John Warren, 3rd Baron de Tabley, "Circe", Poems Dramatic and Lyrical (1893), p. 37

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