Fig. 1. Scopelarchus analis. (A) Photograph of the tubular eye, courtesy
of Prof S. Collin. (B) Diagram of a vertical section through the eye. AR,
accessory retina; L, lens; LP, lens pad; MR, main retina; ON, optic nerve.
Redrawn from Partridge et al. (Partridge
et al., 1992).