A horny, chitinous, or bony external plate or scale, as on the shell of a turtle or the underside of a snake. Also called scutum.
[From Latin scūtum, shield. See scutum.]
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A horny, chitinous, or bony external plate or scale, as on the shell of a turtle or the underside of a snake. Also called scutum.
[From Latin scūtum, shield. See scutum.]
Any squama or scalelike structure, especially one of the thick epidermal plates on the head of snakes, or the shell of a tortoise.
The noun has one meaning:
Meaning #1:
large bony or horny plate as on an armadillo or turtle
A scute or scutum (Latin scutum, plural: scuta "shield") is a horny, chitinous, or bony external plate or scale, as on the shell of a turtle or the skin of crocodiles. They are similar to scales, but unlike scales, they are derived from the epidermis. The term is also used to describe the scales of some armored mammals, such as the armadillo and the extinct glyptodon, and is occasionally used as an alternative to scales in describing snakes or certain fishes, such as sturgeons.
The turtle's scutes in the carapace are the nuchal scute, neural or vertebral or central scute, marginal scute, and pygal or supracaudal scute. Those in the plastron are the epiplastron, entoplastron, hyoplastron, and hypoplastron.
Scutes are also a type of osteoderm.
The term "scutum" is also used in insect anatomy, as an alternative name for the anterior portion of the mesonotum (and, technically, the metanotum, though rarely applied in that context).
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