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Updated: June 27, 2025
But throughout all, we see the rise, culmination, and decay of many transitory and apparently preparatory groups such as, for example, the Labyrinthodons and Urodelas preceding the modern types of Amphibia; ancient fish-forms preceding modern ones, and either dying out or leaving but a few and distant representatives; or again, the whole tribes of ancient Saurians, of which something has already been said.
Probably the giant salamander of modern Japan affords the best suggestion of the large and primitive salamanders of the Coal-forest, while the Caecilia snake-like Amphibia with scaly skins, which live underground in South America may not impossibly be degenerate survivors of the curious Aistopods.
When first invited to visit the University, I had hoped to make it only a stage and stepping-stone to something yet more interesting to visit the Arctic hunters once more, and join them in the most exciting of their pursuits; a chase by the electric light of the great Amphibia of the frozen sea-belt immediately surrounding the permanent ice-cap of the Northern Pole.
X. "Let us now pass," said Axius, "to that tribe which cannot live in the barn yard all the time, or even on land, but requires access to ponds. I mean those whom you philhellenes call amphibia.
Reptiles and amphibia were at first united in one class because of their resemblance in external form. Our common salamanders look so much like lizards that they generally pass by this name.
It is among these, and not among the actual Amphibia, that we must look for the forms that are directly related to the genealogy of our race, and are the ancestors of the three higher classes of Vertebrates.
II. In Captain Grey's Travels in Western Australia I gave a list of the different species of Reptiles and Amphibia found in Australia. Since that period the British Museum has received from the different travellers various other species from that country.
It has also the faculty of suspending respiration, or of drawing in a quantity of breath and of emitting it with violence. On the whole, remarks the editor of Calmet, we may consider the Hebrew tahash as being decidedly a seal; but tannin as including creatures resident both on land and in water, or, in other words, the amphibia.
That these links are not unique is proved by numerous other examples known to science, such as those which connect amphibia and reptiles, ancient reptiles and primitive mammals, as well as those which come between the different orders of certain vertebrate classes.
Our modern tailless Amphibia, frogs and toads, appear much later in the story of the earth, but they are not without interest here on account of the remarkable capacity which they show to adapt themselves to different surroundings.
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