Caprellinoides mayeri ( Pfeffer, 1888 )

Caprellinoides mayeri ( Pfeffer, 1888) View in CoL

( Fig. 1 View FIGURE 1 )

Caprellina mayeri Pfeffer, 1888: 137–139 , pl. 3: fig. 4 Piperella grata Mayer, 1903: 59 , pl. 2: fig 29, pl. 7: figs. 40–45, pl. 9: figs. 24–25, 62. Caprellinoides mayeri Mayer, 1890: 88 View in CoL , pl. 5: figs. 57–58, pl. 6: figs. 15, 26, pl. 7: fig. 48.— McCain & Steinberg, 1970: 47.—

McCain & Gray, 1971: 116–119, fig. 4–5.— Laubitz, 1991: 36–38, fig. 6.— Guerra-García, 2003: 180–181, fig. 3.—Webber et al., 2010: 219.— Schnabel et al., 2023: 436. Caprellinoides spinosus K.H. Barnard, 1930: 441 View in CoL , fig. 62.

Diagnosis. Head rounded, no projection; body with subacute projections on pereonites 2, 3, and 4. Antenna 1 approximately ¼ of body; peduncle articles 1–2 narrow, sparsely setose, shorter than flagellum. Antenna 2 shorter than peduncle of antenna 1, no dense setae on ventral margin. Gnathopod 1 very small, with palmar margin of propodus weakly setose with two proximal grasping spines; palm straight; dactylus smooth without setae. Pereonite 2 without ventral projection. Gnathopod 2 in male arising anteriorly midlength of pereonite 2; basis shorter than propodus and shorter than pereonite 2; propodus with subacute corner ¼ along posterior margin defining palm, this corner is armed with one robust seta/grasping spine; palm convex and lined with small slender setae; dactylus slightly curved, reaching to palm corner, inner margin smooth and not with setae. Gnathopod 2 in female inserted anteriorly on pereonite 2; palm of propodus straight. Gills small and oval, longer than wide. Pereopod 5 reduced with three articles, articles 2 with straight margins, article 3 small and rounded not like dactylus. Pereopod 6 slightly smaller in length and size than pereopod 7; propodus narrow, palmar margin of propodus concave bearing short setae with one grasping spine; palm defined by large subacute corner near junction of propodus and carpus. Appendages without downy covering.

Distribution. Antarctic and subantarctic waters; 1– 412 m. ( De Broyer et al., 2007).