Fig. 4 in Two New Species of Lecithotrophic Nauplius y with Remarkable Labra from Okinawa, Japan, and a Family-Group Name for y-Larvae (Crustacea: Thecostraca: Facetotecta: Hansenocarididae fam. nov.)

Fig. 4. Comparison of cephalic shield plates of Hansenocaris furcifera Itô, 1989 and Hansenocaris cristalabri sp. nov., holotype (NHMD- 1174614). A–E, cephalic shields of last five naupliar instars [N1–N5 respectively according to Itô (1990)] of H. furcifera with color-zone indications (key at lower right) showing successive stages of subdivision of shield plates (facets) starting with 'primordial' plates in N1 (after Itô 1987a, 1990: figs 5E–F, 7, 8E, 10B; used with permission of the editor, Publications of the Seto Marine Biological Laboratory); F, last-stage nauplius of Hansenocaris cristalabri sp. nov. with presumed plate homologies to H. furcifera indicated by color-coding and alpha-numeric labels. Putatively homologous regions in C, E, and F marked by linked dotted ellipses.