On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection Author Petrescu, Iorgu text Records of the Australian Museum 2018 2018-03-28 70 1 1 111 http://dx.doi.org/10.3853/j.2201-4349.70.2018.1645 journal article 10.3853/j.2201-4349.70.2018.1645 2201-4349 5236860 82A58B37-13FE-4EA8-AFF2-E954CDBEFD69 Campylaspis popai sp. nov. Fig. 30 Holotype ♀ , 3.47 mm , P.64648, Australia , NSW, north-east of Port Jackson , -33.73° 151.95°, 820–888 m , beam trawl, 11 Feb 1986 , R . T . Springthorpe, FRV Kapala , K86-01-07, in AM . Etymology . The species is dedicated in honour of my colleague Dr Luis Popa, specialist in molecular biology, as a sign of sincere appreciation of his work. Diagnosis . Carapace smooth; eyeless ocular lobe; merus of maxilliped 3.03 total length, merus to propodus with teeth on medial margin; pereopod 1 with carpus as long as propodus; dactylus of pereopod 2 with digitiform tip; uropodal peduncle 4.4 pleonite 6 length, 2.4 endopod length, endopod with 7 microserrate setae. Description . Carapace , large, 0.52 rest of body length, covering almost first 3 pereonites; pseudorostrum 0.22 carapace length; large siphons; ocular lobe without lenses; smooth integument ( Fig. 30 A, B ). — Antenna 1 peduncle article 1 as long as article 3; article 2 0.75 article 3 length; main flagellum 0.8 article 3 length; accessory flagellum with 1 article; aesthetascs 1.1 main flagellum length ( Fig. 30 C ). — Maxilliped 3 , basis 0.77 rest of article’s length, with 2 pappose setae; ischium to propodus serrate medially; ischium with 1 plumose seta; merus 0.31 maxilliped length, 3.33 ischium length, with 1 plumose and 7 simple setae; carpus 0.26 merus length, with 1 simple, 2 plumose and 1 pappose seta; propodus 1.1 carpus length, with 2 pappose setae; dactylus 0.6 propodus length, with 5 simple; with exopod ( Fig. 30 D ). — Pereopod 1 basis 0.6 rest of article’s length, 2 simple and 1 plumose seta; ischium with 1 simple and 1 plumose seta; merus 4.4 ischium length, with 1 simple and 3 plumose setae; carpus 0.33 merus length, with 5 plumose setae; propodus 0.9 carpus length, with 2 simple and 3 long plumose setae; dactylus 0.5 propodus length, with 5 simple setae; with exopod ( Fig. 30 E ). — Pereopod 2 basis, 0.39 rest of article’s length, with 1 simple seta; merus 4.3 ischium length, with 1 simple seta; carpus, longest article, 1.15 basis length, 3.3 merus length; dactylus 4.4 propodus length, with digitiform tip, with 8 simple setae; with exopod ( Fig. 30 F ). — Pereopod 3 basis 1.43 rest of article’s length, with 2 setae; merus 2.1 ischium length, with 1 simple seta; carpus 1.8 merus length, with 2 simple setae; propodus 0.33 carpus length, with 2 annulate setae; dactylus 0.55 propodus length, fused with terminal robust seta ( Fig. 30 G ). — Pereopod 4 , basis 1.3 rest of article’s length, with 1 simple seta; merus 2 ischium length carpus 2 merus length, with 1 annulate and 3 simple setae; propodus 0.35 carpus length, with 1 simple and 1 annulate seta; dactylus fused with terminal robust seta ( Fig. 30 H ). — Pereopod 5 , basis 0.86 rest of article’s length; merus 2 ischium length; carpus 1.7 merus length, with 1 annulate seta; propodus 0.3 carpus length, with 1 annulate seta; dactylus fused with terminal seta ( Fig. 30 I ). — Uropod peduncle 4.4 pleonite 6 length, 3 serrations proximally, 2.4 endopod length; exopod 0.89 endopod length, with 3 simple setae; endopod with 7 microserrate setae interspersed with setulae medially, 1 terminal microserrate robust seta 0.5 endopod length ( Fig. 30 J ). Remarks . The new species resembles C. cursaruae sp. nov. with a smooth integument, small ocular lobe without lenses; very small antennal notch; maxilliped 3 with serrate medial margin, dactylus of 2nd pereopod with pedunculate tip. It differs with: carapace with a smooth anteroventral margin vs. serrate in C. cursaruae ; maxilliped 3 with a longer merus; pereopod 1 with a shorter basis; pereopod 2 with a longer carpus and shorter dactylus; uropodal endopod with seven medial setae vs. four in C. cursaruae sp. nov. Distribution . Australia : NSW—northeast of Port Jackson, at 820–888 m depth.