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Keywords from Image Description:
Helix pomatia eye. Drawing of cross section of the tentacle with and eye of Helix pomatia br retinabr layer with rod cellsbr fibrous connective tissue layerbr nerve of an eyebr Tentakel der Winbergschnecke Helix pomatiabr Linsebr Fhlerepithelbr pellucida externabr pellucida internabr Retinabr Stbchenschichtbr