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At the present day the Chelonia alone include oceanic, fresh-water, and terrestrial forms.
2
Turtles and tortoises belong to the order known as Chelonia.
3
The turtle-group (Chelonia) makes its appearance in the Triassic and thrives in the Jurassic.
4
Or to turn to the higher Vertebrata-inwhat sense are the Liassic Chelonia inferior to those which now exist?
5
CHELONIA.-Anorder of Reptiles including the Turtles, Tortoises, etc.
1
The North American Testudinata.
2
The Third Part exemplifies the bearing of Embryology upon these general questions, while it contains the fullest illustration of the embryonic growth of the Testudinata.
3
We see that the other two parts are devoted to the description and delineation of a single order of Reptilia,-theTestudinata, or "Turtles."
4
Tortoises (Testudinata, or Chelonians) belong to a very numerous order of reptiles, the usual form of which is too well known to require description.
5
The two first cases devoted to Testudinata (18, 19) contain the American, Indian, and African varieties of the land tortoise.