dc:title"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.)";
dc:description"Fig. 1. Hansenocaris cristalabri sp. nov., holotype (NHMD-1174614), microphotographs of living nauplius at two different stages of development. A, B, nauplius in dorsal and lateral view, respectively; C, D, last-stage nauplius in ventral and lateral view, respectively. Live video of H. cristalabri sp. nov. can be seen here: https://youtu.be/SCskuhPTCXo and is also deposited at Figshare.com: https://doi.org/10.6084/ m9.figshare.20430807.";
dc:description"Fig. 2. Hansenocaris cristalabri sp. nov., holotype (NHMD-1174614), scanning electron micrographs of last-stage nauplius. A, B, habitus, ventral and lateral views, respectively; C, D, cockscomb-like labral process, left (enlarged from B) and right-posterior views, respectively; E, detail of spine-flanked notch in posteriolateral margin of cephalic shield, indicated by dotted arrow (cf. Fig. 3N); F, G, successively enlarged details of pore in A on posterior face of labral base, indicated by dotted arrows; H, detail of pore in A indicated by dotted arrow; I–M, details of pores in B indicated by dotted arrows; N, same as E; O, detail of dorsocaudal spine in B, left lateral view; P, detail of region of furcal spines, slightly oblique ventral view.Abbreviations:invag, cuticular invagination; pores and setae numbered as described in text and Table 1.";
dc:description"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.";
dc:description"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.";
dc:description"Fig. 5. Hansenocaris cristalabri sp. nov., holotype (NHMD-1174614), scanning electron micrographs of last-stage nauplius. A, naupliar appendages (first antennae, second antennae, and mandibles) and labrum with cockscomb-like process, ventral view; B, same, anterior view; C, left first antennae, outer side; D, right second antenna, inner side; E, F, left mandible, viewed from two different angles. Abbreviations: ba, basis; co, coxa; en, endopod; ex, exopod; invag, cuticular invagination. Arabic numerals 1–6, exopodal segments 1–6, numbered from proximal to distal.";
