Fig. G15: Structure of the nauplius eye in Eucalanus elongatus (Calanoid) (after Vaissière, 1961).

A: Dorsal view. Cp: pigment cell; gr: refringent granules; ls: suspensory ligament; Nc: nucleus of the crystalline cell; nf: frontal nerve; no: optic nerve; ol: lateral ocellus; Om: median ocellus; R: rostrum; Sc: crystalline sphere.

B: Frontal (a) and longitudinal (b) section; Cc: crystalline cell; Chv: chitin of the ventral wall; Ci: internal body; fn: nerve fiber; Hy: hypodermis; m: ocellar membrane; Nr: rostral nerve; T: neurofibrillar endings; Zc: chromophobe zone; Zl: lamellar zone.