Fig. 3 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. 3. Hansenocaris cristalabri sp. nov., holotype (NHMD-1174614), scanning electron micrographs of last-stage nauplius. A, B, habitus, dorsal and posteriodorsal view respectively; C, cephalic shield, slightly oblique frontal view, with 'primordial plates' differentiated by colors and abbreviations following Itô's (1987b, 1990) system (see Fig. 4); D–M, details of pores and setae of cephalic shield in A and C, indicated by dotted arrows; N, detail of spine-flanked notch in posterolateral margin of cephalic shield, indicated by dotted arrow (cf. Fig. 2E); O, two orderly spine-rows defining dorsal "keel" of trunk and contrasting with otherwise irregularly arranged spinules of transverse ridges. Abbreviations: C, crescentic plate; F-1–F-4, derivatives of primordial frontal plates 1–4; I-1, intercalary plate 1; O-1, occipital plate 1; P-1, derivatives of primordial polygonal plate 1; W, window; pores and setae numbered as described in text and Table 1.