Campylaspis vasilescui, 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 : 30

Campylaspis vasilescui sp. nov.

Fig. 36

Holotype ♂, 2.77 mm, P.88259, Australia, WA, Cape Range National Park , inshore limestone reef off Neds Camp, -21.98° 113.92°, 1.5 m, sponge covered with epiphytic algae, muddy worm tubes, sediment, 2 Jan 1984, R. T. Springthorpe, WA 364, in AM.

Etymology. The species is dedicated in honour of George Vasilescu, neurophysician, in eternal gratitude for all he did to save my life in 2005.

Diagnosis. Carapace, 0.56 total body length, lateral sulcus almost entire carapace length; maxilliped 3 merus 3.9 ischium length; pereopod 2 dactylus 3.2 propodus length, robust short terminal; uropodal peduncle 1.43 pleonite 6, 1.7 endopod length; exopod 0.92 endopod length; endopod with 2 simple setae and 1 sensory subterminal seta medially.

Description. Carapace, 0.56 body length, 1.97 as long as high, 1.59 as long as wide, lateral sulcus almost entire carapace length; large frontal lobe with large eye lobe without lenses, toothed anterior margin of pseudorostrum; smooth integument; small antennal notch; pseudorostrum 0.4 carapace length ( Fig. 36 A, B ). — Antenna 1 with robust peduncle, article 1 0.3 rest of article’s length; article 2 0.9 article 1 length; article 3 as long as article 1; short sensory seta on outer margin of middle article; main flagellum 1.45 article 3 length; accessory flagellum with 1 article; aesthetascs 0.6 main flagellum length ( Fig. 36 C ). — Maxilliped 3, robust articles, basis 0.73 rest of article’s length, with 4 plumose setae; margin, merus 3.9 ischium length, with 1 pappose and 5 simple setae, merus to propodus with serrate margins; carpus 0.28 merus length, with 1 pappose seta; propodus 1.27 carpus length, with 1 plumose and 3 pappose setae; dactylus 0.28 propodus length, with 2 simple setae; with exopod ( Fig. 36 D ). — Pereopod 1 basis 0.73 rest of article’s length, with 2 pappose setae; ischium with 1 pappose seta; merus 3.14 ischium length, with 2 simple and 2 pappose setae; carpus 0.65 merus length, with 1 simple, 1 plumose and 3 pappose setae; propodus 0.8 carpus length, with 2 simple and 3 pappose setae; dactylus 0.66 propodus length, with 4 simple setae; with exopod ( Fig. 36 E ). — Pereopod 2 basis 0.47 rest of article’s length, with 1 plumose seta; merus 4 ischium length, with 1 simple and 1 plumose seta; carpus 1.45 merus length, with 1 plumose, 1 simple and 2 pappose setae; dactylus 3.2 propodus length, with 7 simple setae and terminal 1 simple short and 1 simple, 0.68 dactylus length; with exopod ( Fig. 36 F ). — Pereopod 3, basis 1.06 rest of article’s length, basis with serrate margins, with 1 simple and 1 plumose seta; ischium with 2 simple setae; merus 3 ischium length, with 2 simple setae; carpus 1.3 carpus length, with 1 simple short seta and hyaline fringe; propodus 0.29 carpus length, with 1 simple seta; dactylus 0.6 propodus length, 1 simple and 1 robust terminal seta; with exopod ( Fig. 36 G ). — Pereopod 4 basis 0.83 rest of article’s length, with 2 simple setae; merus 2.2 ischium length, with 1 simple seta; carpus 1.45 merus length, with 2 simple setae; propodus 3.2 carpus length, with 1 simple seta; dactylus 0.7 propodus length, with 1 simple seta; with exopod ( Fig. 36 H ). — Pereopod 5 basis 0.48 rest of article’s length; ischium with 1 simple seta; merus 2.6 ischium length, with 1 simple seta; carpus with serrate margins, as long as ischium and merus length, with 1 annulate seta; propodus 0.4 carpus length, with 1 annulate seta; dactylus fused with terminal short robust seta ( Fig. 36 I ). — Uropod peduncle 1.43 pleonite 6, serrate margins, 1.72 endopod length, with 6 simple setae; exopod 0.9 endopod length, with 7 simple setae, terminal robust seta 0.88 exopod length; endopod with serrate margins, 2 short simple and 1 sensory robust subterminal seta medially and 1 terminal robust sensory seta, 0.44 endopod length ( Fig. 36 J ).

Remarks. The new species Campylaspis vasilescui resembles other species, C. johnstoni Hale, 1937 , C. edenensis Petrescu, 2006 , C. hangiuae sp. nov. and C. oneai sp. nov.

Distribution. Australia: WA—Cape Range National Park, at 1.5 m depth.

Figures

Figure 36. Campylaspis vasilescui sp. nov. Holotype male (A) body, lateral view; (B) body, dorsal view; (C) antenna 1; (D) maxilliped 3; (E) pereopod 1; (F) pereopod 2; (G) pereopod 3; (H) pereopod 4; (I) pereopod 5; (J) uropod. Scales:A, B 1 mm; C 0.1 mm; D–J 0.2 mm.