Operculum papillare
The operculum papillare is the iris found in the eyes of elasmobranchs (skates, sharks and rays). It can undergo pupillary light reflex to such an extent that the eye is essentially shut off.
The operculum papillare is the iris found in the eyes of elasmobranchs (skates, sharks and rays). It can undergo pupillary light reflex to such an extent that the eye is essentially shut off.
The operculum papillare is the iris found in the eyes of elasmobranchs (skates, sharks and rays). It can undergo pupillary light reflex to such an extent that the eye is essentially shut off.
Source: Wikipedia "Operculum papillare" · CC BY-SA 4.0
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