Figure 6
From: Invertebrate neurophylogeny: suggested terms and definitions for a neuroanatomical glossary
Morphological sequence of different types of multicellular eyes exemplified by gastropod eyes. A. Eye pit of Patella sp. B. Eye cup of Pleurotomaria sp. C. Pinhole eye of Haliotis sp. D. Closed eye of Turbo creniferus. E. Lens eye of Murex brandaris. F. Lens eye of Nucella lapillus. Abbreviations: ep = epidermis; la = lacuna; le = lens; re = retina; vm = vitreous mass. Modified from [101], with permission of Springer.