Procampylaspis corberai, 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 : 39

Procampylaspis corberai sp. nov.

Fig. 44

Holotype ♀, 4.6 mm, P.90712, Australia, NSW, east of Broken Bay , -33.5° 152.2°, 1053–1066 m, beam trawl, 12 Feb 1986, R. T. Springthorpe, FRV Kapala , K86-01-10, in AM . Paratype: 1♀, diss., P.90713.

Etymology. The species is dedicated in honour of Dr Jordi Corbera, Spanish world specialist in Cumacea , as a sign of appreciation of his work and gratitude for his friendship.

Diagnosis. Carapace 0.4 of entire length, 6 pairs of dorsal tubercles separated by a carina; maxilliped 2 merus as long as carpus, propodus 1.3 carpus length, dactylus with first 3 teeth equally long, 4th tooth, shorter and curved, long extremity of dactylus; merus of 1st pereopod as long as carpus; carpus of 2nd pereopod as long as dactylus; uropodal peduncle 2.4 pleonite 6 length, 1.2 endopod length, endopod 1.2 exopod length, 3 setae on medial margin.

Description. Carapace 0.4 body length, 2 longer than high; 6 pairs of dorsal tubercles separated by a carina; short ocular lobe; pseudorostrum lobes meeting in front of ocular lobe, 0.3 carapace length; large antennal notch; anterior margin not excavated ( Fig. 44 A ). — Pereonites and pleonites with smooth integument. — Antenna 1 peduncle article 1 0.44 rest of articles; article 2 1.05 article 3 length; article 3 0.9 article 2 length; main flagellum 1.3 article 3 length; accessory flagellum with 1 article; aesthetascs 1.04 main flagellum length ( Fig. 44 A ). — Maxilliped 2 basis with 1 plumose seta; merus 4 ischium length, with 1 plumose seta; carpus 0.9 merus length, with 1 plumose seta; propodus 1.3 carpus length, with 2 plumose setae; dactylus with first 3 teeth equally long, 4th tooth, shorter and curved, long extremity of dactylus ( Fig. 44 D ). — Maxilliped 3 with slender articles, basis 0.9 rest of article’s length, with 3 plumose setae; merus 1.6 ischium length, with 1 tooth and 4 plumose setae; carpus as long as merus, with 1 tooth and 3 plumose setae; propodus 1.3 carpus length, with 3 plumose setae; dactylus 0.6 propodus length, with 5 simple setae; with exopod ( Fig. 44 E ). — Pereopod 1 basis 0.7 rest of article’s length, with 2 plumose setae; ischium with 1 plumose seta; merus as long as ischium, with 1 simple and 1 plumose seta; carpus as long as merus, with 1 simple and 1 plumose seta; propodus 1.3 carpus length, with 5 simple setae; dactylus 0.5 propodus length, with 6 simple setae; with exopod ( Fig. 44 F ). — Pereopod 2 basis 0.6 rest of article’s length, with 1 plumose and 6 simple setae; merus 3.5 ischium length, with 1 simple and 1 plumose seta; carpus 1.8 merus length, with 3 simple and 2 plumose setae; dactylus 3.5 propodus length, with 1 simple and 5 microserrate setae; with exopod ( Fig. 44 G ). — Pereopods 3–5 with decreasing basis and increasing carpus in pairs 3 and 4 (pair 5 with carpus shorter than in pair 4); ischium and merus with 1 simple seta, carpus and propodus with annulate seta; dactylus with 1 terminal simple seta ( Fig. 44 H–J ). — Uropod peduncle 2.4 pleonite 6 length, 1.2 endopod length, with 10 setae; endopod 1.2 exopod length, with 3 microserrate setae medially and 1 robust simple terminal seta on both rami ( Fig. 44 K ).

Remarks. Procampylaspis corberai sp. nov. is closely related to P. poorei Petrescu, 2006 , having a slender maxilliped 3, pereopod 1 propodus longer than the carpus, pereopod 2 dactylus with plumose setae, endopod of uropod with 3 setae. It differs in having: 12 dorsal tubercles on the carapace instead three, first teeth of dactylus of maxilliped 2 of equal length, and a longer uropod peduncle.

Distribution. Australia: NSW—east of Broken Bay, at 1053–1066 m; and northeast of Eden, at 250–300 m depth.

Figures

Figure 44. Procampylaspis corberai sp. nov. Paratype female (A) body, lateral view; (B) carapace, drosal 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 0.1 mm; D 0.2 mm; E–K 0.5 mm.