Campylaspis gabrielamircea, 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 : 13-14

Campylaspis gabrielamircea sp. nov.

Fig. 11

Holotype subadult ♀, 3.02 mm, P.88229, Australia, NSW, east of Newcastle , -32.88° 152.58°, 165 m, bottom tow with plankton net, 15 Aug 1985, FRV Kapala , K85-12-23, in AM . Paratypes: 1♀, P.64654; 1♀, 1♂, 2.7 mm, P.64737; 1♂, MGAB CUM 1650 ; 2 mancas, P.88230 ; 1♀, 1♂, 1 manca, P.64744; 1♀ (diss.) MGAB CUM 1651 ; 1♂, P.64747.

Etymology. Species dedicated to my colleagues from the “Grigore Antipa” Museum, Gabriela and Mircea Andrei, as a sign of gratitude for their friendship showed to me during the years and especially during the difficult period of 2005.

Diagnosis. Carapace 0.5 body length, 3 pairs of small tubercles on each side, a pair of larger tubercles on basis of frontal lobe, frontal lobe with 2 tiny tubercles, lateral longitudinal ridge parallel with ventral margin; maxilliped 2 carpus with 1 small tooth and 2 simple setae; propodal seta longer than teeth of dactylus; pereopod 2 dactylus 2.4 propodus length, with digitiform tip; uropodal peduncle 2 6 pleonite length, 1.6 endopod length, exopod 0.7 endopod length.

Description. Carapace about 0.5 body length, 1.8 as long as high, 1.5 as long as wide, dorsal keel, 3 dorsal pairs of small tubercles on each side, 1 pair of larger tubercles at basis of frontal lobe; eye lobe with 3 tiny tubercles, 1 posterior and 1 lateral large protuberances, lateral longitudinal ridge, parallel with ventral margin; pseudorostrum 0.26 carapace length; ventral margin serrated in anterior part ( Fig. 11 A, B, C ). Pereonite 5 to pleonite 4 with medial double keel, unique on last 2 pleonites. — Maxilliped 2 basis and ischium fused, longer than 0.5 of maxilliped, 1 plumose seta on medial corner; merus with 1 plumose seta, carpus with 1 small tooth between 2 simple setae; propodus 2nd longest article, with 1 outer robust seta exceeding 3 teeth of dactylus ( Fig. 11 D ). — Maxilliped 3 scaly integument, with serrate margins, basis shorter than rest of articles combined length, 3 plumose setae; merus with 1 plumose and 5 simple setae, longest article, 1.1 carpus length; carpus as long as propodus, 4 plumose and 3 simple setae on carpus and propodus; 4 terminal simple setae longer than dactylus; with exopod ( Fig. 11 E ). — Pereopod 1 with scaly integument, basis 0.4 pereopod length, with 2 plumose setae; ischium to propodus with serrate margins; ischium with 6 simple setae; carpus with 4 simple setae; propodus with 3 setae; dactylus with 6 simple setae; with exopod ( Fig. 11 F ). — Pereopod 2 basis with a few scales, longer than 0.3 pereopod length, 1 plumose seta; merus 3 ischium length, with 1 simple seta; carpus 2 merus length; merus and carpus with serrate margins, 2 simple and 1 robust seta; dactylus 2.4 propodus length, with 7 simple setae on both margins, digitiform tip, 1 long terminal simple seta; with exopod ( Fig. 11 G ). — Pereopods 3–5 with decreasing basis and increasing carpus length; dactylus fused with terminal seta ( Fig. 11 H–J ). — Uropod with serrate margins, peduncle 2 pleonite 6 length, 1.6 endopod length, exopod 0.7 endopod length, terminal robust seta, 0.6 exopod length; endopod with 3 microserrate setae on medial margin, 1 microserrate terminal seta, 0.4 endopod length ( Fig. 11 K ).

Remarks. Campylaspis gabrielamircea sp. nov. is closely related to C. angelae Petrescu, 2006 from New South Wales, primarily on the basis of carapace sculpture; it differs by pereopod 1 having a shorter basis in C. gabrielamircea vs. longer in C. angelae , and the uropod with a longer peduncle in the new species (2 vs. 1.6), without a median crest.

Distribution. Australia: NSW—east of Newcastle and of Long Reef Point, at 165–176 m; and TAS—east of Flinders Island, at 280–350 m depth.

Figures

Figure 11. Campylaspis gabrielamircea sp. nov. Paratype female (A) body, lateral view; (B) body, dorsal view; (C) maxilliped 2; (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–F 0.2 mm; G–J 0.3 mm.