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| | ETI - Turtles of the World: Turtle anatomy |
 | | Inframarginals, a series of small scutes lying between the carapacial marginals and the sides of the adjacent plastral scutes, are present in the families Cheloniidae, Chelydridae, Dermatemydidae, and Platysternidae. |
 | | Turtles of the genera Pelusios, Emys, Emydoidea, Terrapene, Cuora, Cyclemys, Pyxidea, Notochelys, Pyxis, and Testudo have a transverse hinge, more or less developed on the plastron, and in most species of Kinosternon a pair of hinges borders the abdominals. |
 | | These hinges allow the plastron to be folded up to enclose the head and limbs if it is large enough. |
| www.eti.uva.nl /Turtles/Turtles1.html (466 words) |
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