Contrasting pale and dark areas of the germinal layer correspond to the pattern of markings on the scute removed.
They are mere dips or depressions in the surface of the scute.
Its highest point is always behind the centre of the scute, and is devoid of sculpture.
A scute that shows a single season of growth has two layers; a new layer is added in each subsequent season of growth.
The new layer is thin and indistinct under the oldest part of the scute but becomes more distinct toward its periphery.
There is little actual increase in thickness of the scute after the first three or four years of growth.
Scutig′erous, provided with a scute or scuta; Scū′tiped, having the shanks scaly, of birds.
This crest always subsides before it reaches the anterior margin of the scute, though it may extend beyond the posterior margin.
From before backwards, the inner surface of the scute is a little convex.
Nor could I satisfy myself that the margins of the scute were continuous with the surrounding bundles of connective tissue.
A thin platelike structure.