Campylaspis adami, Petrescu, 2018

Petrescu, Iorgu, 2018, On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection, Records of the Australian Museum 70 (1), pp. 1-111 : 8

Campylaspis adami sp. nov.

Fig. 2

Holotype subadult ♀, 4.0 mm, P.64741, Australia, NSW, east of Port Jackson , -33.87° 151.38°, 80 m, epibenthic sled, shelly mud, 11 Dec 1980, R. T. Springthorpe, FRV Kapala , K80-20-11, in AM.

Etymology. The species is dedicated to my colleague Dr Costică Adam, specialist in Malophaga, as a sign of highly appreciation of his work.

Diagnosis. Carapace with small tubercles, eyeless ocular lobe; robust maxilliped 3 basis 0.68 rest of article’s length; merus to carpus with teeth medially; pereopod 1 basis 0.68 pereopod length; pereopod 2 basis 0.7 pereopod length, dactylus 2.8 propodus length, with terminal simple seta; uropodal peduncle 2.65 pleonite 6, 2.57 endopod length.

Description. Carapace 0.4 entire length, with small tubercles; 1.38 as long as high; 1.5 as long as wide; pseudorostrum 0.2 carapace length; small antennal notch; smooth ventral margin ( Fig. 2 A, B ). — Maxilliped 3 basis 0.68 rest of article’s length, setose medially, 1 pappose seta; basis to propodus serrated medially; ischium 0.28 basis length; merus 2.4 ischium length, second longest article, with 9 setulae, 3 teeth and 1 pappose seta; carpus 0.22 merus length, with 2 setulae and 1 pappose seta; propodus 0.94 carpus length, with 4 pappose setae; dactylus 0.4 propodus length, with 3 simple setae; with exopod ( Fig. 2 C ). — Pereopod 1 basis 0.62 rest of article’s length, with 2 pappose setae; ischium 0.14 basis length, with 1 tooth and 1 pappose seta; merus, 2nd longest article of pereopod, 3.6 ischium length, with 7 pappose and 3 simple setae; carpus 0.83 merus length, with 6 simple and 4 pappose setae; propodus 0.76 carpus length, with 4 simple and 4 pappose setae; dactylus 0.52 propodus length, with 6 simple setae; with exopod ( Fig. 2 D ). — Pereopod 2 basis 0.7 rest of article’s length, with 2 plumose setae; ischium 0.1 basis length; merus 3 ischium length, with 1 simple and 2 pappose setae; carpus 1.6 merus length, with 2 simple and 1 plumose seta; propodus 0.4 carpus length, with 1 simple seta medially; dactylus 2.8 propodus length, with 8 simple; with exopod ( Fig. 2 E ). — Pereopod 3 basis 1.8 rest of article’s length; merus 1.14 ischium length, with 1 plumose seta; carpus 1.1 merus length, with 1 plumose and 1 annulate seta; propodus 0.4 carpus length, with 1 annulate seta; dactylus fused with terminal robust seta ( Fig. 2 F ). — Pereopod 4 basis 0.54 rest of article’s length; ischium with 1 simple seta; merus 1.6 ischium length, with 1 plumose medially; carpus 2.5 merus length, with 1 simple and 1 annulate seta; propodus 0.17 carpus length, with 1 annulate seta; dactylus fused with terminal robust seta ( Fig. 2 G ). — Pereopod 5 basis 0.16 rest of article’s length; merus 1.5 ischium length; ischium and merus with 1 simple seta; carpus 3.3 merus length, with 1 simple and 1 annulate seta; propodus 0.3 carpus length, with 1 annulate seta; dactylus fused with terminal robust seta ( Fig. 2 H ). — Uropod peduncle 2.65 pleonite 6 length, with serrated margins, 2.57 endopod length; exopod as long as endopod, with 3 simple, 1 subterminal simple and 1 terminal seta 0.77 exopod length; endopod with serrated margins, with 5 simple and 1 terminal robust simple seta 0.66 endopod length ( Fig. 2 I ).

Remarks. Campylaspis adami sp. nov. is closely related to C. roscida Hale, 1945 with the integument of the carapace having with tiny tubercles, and being opaque in the new species (glassy in Hale’s), and the uropodal endopod with 5 setae. The new species differs in the basis of maxilliped 3 lacking setae on medial margin, pereopod 1 with more numerous setae, and a longer uropodal peduncle.

Distribution. Australia: NSW—east of Port Jackson, at 80 m depth.

Figures

Figure 2. Campylaspis adami sp. nov. Holotype female (A) body, lateral view; (B) carapace, dorsal view; (C) maxilliped 3; (D) pereopod 1; (E) pereopod 2; (F) pereopod 3; (G) pereopod 4; (H) pereopod 5; (I) uropod. Scales:A,B 1 mm; C 0.25 mm; D 0.5 mm; E–I 0.5 mm.