Campylaspis panai, 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 : 23-24

Campylaspis panai sp. nov.

Fig. 28

Holotype subadult ♀, 3.65 mm, P.88197, Australia, NSW, north-east of Twofold Bay , -36.97° 150.37°, 960–1050 m, Waren dredge, thick grey mud with lumps of hard clay, 12 Dec 1986, P.A. Hutchings, W.F. Ponder, R. T. Springthorpe, RV Franklin, FR 1086-07 | FR1086-7, in AM . Paratypes: 2♀♀, P.88196; 1♀ (diss.), MGAB CUM 1659 , all same date as holotype .

Etymology. The species dedicated to the memory of my beloved friend Mihai Pană (1958–2005), as a sign of eternal love and friendship.

Diagnosis. Carapace 0.45 body length, longitudinal rows of tubercles, dorsolateral row with larger tubercles from basis of frontal lobe towards posterior end; maxilliped 2 propodus with 1 tooth; maxilliped 3 propodus 1.5 carpus length; pereopod 2 dactylus 2.9 propodus length, with digitiform tip; uropodal peduncle 2.3 pleonite 6 length, 2.4 rami length: exopod 1.05 endopod length; endopod with 3 setae medially.

Description. Carapace 0.45 body length, 1.5 longer than high, with longitudinal rows of tubercles, dorsal row with larger tubercles from basis of frontal lobe towards posterior end; short ocular lobe without visual elements; pseudorostrum 0.23 carapace length, little upturned, with 3 pairs of robust terminal setae, little exceeding ocular lobe; anterolateral margin with short serration; antennal notch, present ( Fig. 28 A, B ). — Antenna 1 peduncle article 1 0.75 rest of article’s length; article 2 1.2 article 3; main flagellum with 3 articles, 1.3 distal article of peduncle length; accessory flagellum, minute, with 1 article; aesthetascs as long as main flagellum ( Fig. 28 C ). — Maxilliped 2 basis fused with ischium, with a plumose seta; merus with 1 plumose seta; carpus 1.05 merus length, with 1 tooth; propodus 1.4 carpus length, with 1 tooth and 1 robust seta little longer than tridentate dactylus ( Fig. 28 D ). — Maxilliped 3 basis 1.06 rest of article’s length, 1 simple and 2 plumose setae; ischium with 1 simple seta; merus to propodus with serrate margins, merus 4.2 ischium length, with 1 plumose and 4 simple setae; carpus 0.26 merus length, with 3 plumose setae; propodus 1.5 carpus length, with 1 plumose and 2 pappose setae; dactylus 0.5 propodus length with 4 simple setae; with exopod ( Fig. 28 E ). — Pereopod 1 0.4 entire pereopod length, with 3 simple and 2 plumose setae; ischium with 1 plumose seta; merus, 3.8 carpus length, with 6 plumose setae; carpus 0.7 merus length, with 1 simple and 5 plumose setae; propodus 0.9 carpus length, with 1 plumose and 5 simple setae; dactylus 0.4 propodus length, with 5 simple setae; with exopod ( Fig. 28 F ). — Pereopod 2 basis 0.34 pereopod entire length, with 1 pappose seta; merus 10 ischium length, with 1 plumose and 2 simple setae; carpus 1.33 merus length, with 4 simple setae; dactylus 2.9 propodus length, with digitiform tip and 11 simple setae; with exopod ( Fig. 28 G ). — Pereopods 3–5 with decreasing basis and increasing carpus length, with simple, plumose and annulate setae; dactylus with short terminal simple seta ( Fig. 34 H–J ),. — Uropod peduncle 2.3 pleonite 6 length, 2.4 rami length, serrate margins, 4 simple setae medially; exopod 1.05 endopod length, with 3 simple setae; endopod with 4 microserrate setae ( Fig. 28 K ).

Remarks. The new species is related to C. oanalexandru sp. nov. having no lateral sulcus, ocular lobe without lenses and pereopod 2 dactylus with digitiform tip. It differs with: carapace with tubercles vs. none in C. oanalexandru ; maxilliped 3 with larger merus; pereopods, more setose; uropod with longer peduncle and shorter rami in C. panai .

Distribution. Australia: NSW—northeast of Twofold Bay, at 960–1050 m depth.

Figures

Figure 28. Campylaspis panai sp. nov. Paratype female (A) body, lateral view; (B) carapace, dorsal view; (C) antenna 1; (D) maxilliped 2; (E) maxilliped 3; (F) pereopod 1; (G) pereopod 2; (H) pereopod 3; (I) pereopod 4; (J) pereopod 5; (K) uropod. Scales: A,B 1 mm; C,E–K 0.3 mm; D 0.2 mm.

Figure 34. Campylaspis stanae sp. nov. Holotype female (A) body, lateral view; (B) antenna 1; (C) maxilliped 3; (D) pereopod 1; (E) pereopod 2; (F) pereopod 2, detail of dactylus; (G) pereopod 3; (H) pereopod 4; (I) pereopod 5; (J) uropod. Scales: A 1 mm; B,F 0.25; C,G–J 0.5 mm; D,E 1 mm.