| Gallus gallus domesticus |
True Scleral Ring (eye ring bone)
Regular price
CHF 55.00
Category for species identification
Item Description
The scleral ring is a bony ring in the eye of birds, some reptiles (e.g., iguanas), extinct dinosaurs, pterosaurs, and ichthyosaurs. It consists of 14–15 overlapping or fused bony plates embedded in the sclera at the junction with the cornea.
This ring is located behind the iris and in front of the lens, without contact with other bones. Since the iris is attached to the scleral ring, its central opening determines the maximum pupil size. The scleral ring supports the eyeball and serves as an attachment point for the accommodative apparatus.
The shape of the scleral ring varies: in galliforms, it is flat, while in owls, it is tubular, which improves their vision in the dark. Such differences provide valuable clues for the reconstruction of extinct species.
Specifications:
contains about 55 scleral rings (eye ring bones)
This ring is located behind the iris and in front of the lens, without contact with other bones. Since the iris is attached to the scleral ring, its central opening determines the maximum pupil size. The scleral ring supports the eyeball and serves as an attachment point for the accommodative apparatus.
The shape of the scleral ring varies: in galliforms, it is flat, while in owls, it is tubular, which improves their vision in the dark. Such differences provide valuable clues for the reconstruction of extinct species.
Specifications:
contains about 55 scleral rings (eye ring bones)
Article number
Artikelnummer: 345
Barcode: 3984983764873
Shipping Information
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ab CHF 9.50
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ab CHF 11.90
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True Scleral Ring (eye ring bone)
Regular price
CHF 55.00
SWISSskulls
True Scleral Ring (eye ring bone)
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