Assertion: box turtle's plastron | /r/HasProperty | -103% of cl
Facets:
Source sentences:
text: Morphology: Carapace elongated, high-domed (helmetlike), and not serrated along posterior margin; single middorsal keel prominent on 2d to 4th vertebral scutes; posterior margin of carapace flared in some adults; usually marginals 12/12, pleurals 4/4, and vertebrals 5-variation is in number of vertebral scutes; plastron 86-103% of CL; two hinges present on plastron, forming moveable anterior and posterior lobes; bridge absent.