Campylaspis radui Petrescu 2018, sp. nov.

• Main Author: Petrescu, Iorgu
• Format: Text
• Language: unknown
• Published: Zenodo 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Cumacea; Nannastacidae; Campylaspis; Campylaspis radui; Hale; Seta; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.5237053; https://zenodo.org/record/5237053

Campylaspis radui sp. nov. Fig. 31 Holotype subadult ♀, 4.80 mm, P.88244, Australia, NSW, north-east of Port Jackson, -33.68° 152°, 820–888 m, beam trawl, 11 Feb 1986, R. T. Springthorpe, FRV Kapala , K86- 01-07, in AM. Paratypes : 1♀, P.88245; 1♀, P.64754. Etymology . The species is dedicated to the memory of my father, Radu Petrescu, brilliant Romanian writer (1927– 1982), as a sign of eternal love and high respect for his moral qualities, for all he offered to his son. Diagnosis . Carapace 0.48 entire body length, lateral sulcus all around carapace, bordered dorsally by a robust ridge and ventrally by a narrow ridge, 1 pair of small tubercles on basis of frontal lobe; propodus of 2nd maxilliped with 1 medial seta as long as dactylar teeth; dactylus of 2nd pereopod with terminal seta; uropodal peduncle 2.1 pleonite 6 length, 1.9 endopod length; exopod 0.85 endopod length; endopod with 4 simple setae medially. Description . Carapace 0.48 body length, 1.8 as long as high, long lateral sulcus all around carapace, bordered dorsally by a robust ridge and ventrally by a narrow ridge; pseudorostrum lobes meeting in front of eyeless, short, ocular lobe; 1 pair of small tubercles on basis of frontal lobe; small notch; smooth anterolateral margin (Fig. 31 A, B). — Antenna 1 peduncle article 1 as long as rest of article’s length; article 2 1.4 article 3 length; main flagellum with 3 articles; accessory flagellum with 1 article; aesthetascs 1.6 main flagellum length (Fig. 31 C). — Maxilliped 2 basis fused with ischium, basis and merus with 1 simple and 1 plumose seta; merus with 1 plumose seta; carpus 0.9 merus length, with 1 tooth and 2 simple setae; propodus 1.6, with seta as long as dactylar central teeth (Fig. 31 D). — Maxilliped 3 basis 0.5 maxilliped length, with 4 plumose setae; merus 1.55 ischium length, with 1 simple and 2 plumose setae; carpus 1.2 merus length, with 2 simple and 2 plumose setae; propodus as long as carpus, with 3 plumose setae; dactylus 0.5 propodus length, with 4 simple terminal setae; with exopod (Fig. 31 E). — Pereopod 1 basis 1.1 rest of article’s length, basis to carpus with serrate margins, with 1 simple and 3 plumose setae; ischium with 1 plumose seta; merus 2 ischium length, with 5 simple and 3 plumose setae; carpus 1.1 merus length, with 4 simple and 3 plumose setae; propodus 0.7 carpus length, with 4 simple and 2 plumose setae; dactylus 0.8 propodus length, with 4 simple setae; with exopod (Fig. 31 F). — Pereopod 2 basis 0.6 rest of article’s length; merus 0.3 ischium length, with 1 simple seta; carpus 2.5 merus length, with 4 simple setae; dactylus 4 propodus length, with 9 simple setae, straight acute tip; with exopod (Fig. 31 G). — Pereopod 3 basis 1.3 rest of article’s length, with 1 simple seta; ischium with 1 simple seta; merus 1.5 ischium length, with 1 simple seta; carpus 2.3 merus length, with 1 annulate seta; propodus 0.3 carpus length, with 1 annulate seta; dactylus 0.6 propodus length, with 2 simple setae (Fig. 31 H). — Pereopod 4 basis 1.2 rest of article’s length, with 1 simple seta; ischium with 1 simple seta; merus 1.1 ischium length, with 1 plumose seta; carpus 2.5 merus length, with 1 plumose and 1 annulate seta; propodus 0.26 carpus length, with 1 annulate seta; dactylus 0.5 propodus length, with 2 simple setae (Fig. 31 I). — Pereopod 5 basis 0.66 rest of articles combined length, with 2 simple setae; ischium with 1 simple seta; merus 1.4 ischium length, with 1 plumose seta; carpus 1.8 merus length, 1 simple, 1 plumose and 1 annulate seta; propodus 0.4 carpus length, with 1 annulate seta; dactylus 0.4 propodus length, with 2 simple setae (Fig. 31 J). — Uropod peduncle 2.1 pleonite 6 length, 1.9 endopod length, serrated medially; exopod 0.9 endopod length, with 3 simple setae; endopod with 5 simple and 1 terminal simple seta (Fig. 31 K). Remarks . Campylaspis radui sp. nov. is similar to other species: C. pumila Gamô, 1960 from Japan, C. thetidis Hale, 1945, C. latimera Petrescu, 2006, C . rectangulata Petrescu, 2006 and C. sculpta Petrescu, 2006 and C. lowryi sp. nov. from Australia (Table 2). Distribution . Australia: NSW—northeast of Port Jackson, at 820 m depth. : Published as part of Petrescu, Iorgu, 2018, On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection, pp. 1-111 in Records of the Australian Museum 70 (1) on pages 25-26, DOI: 10.3853/j.2201-4349.70.2018.1645, http://zenodo.org/record/5236860 : {"references": ["Hale, H. M. 1945. Australian Cumacea. No. 9. The Family Nannastacidae. Records of the South Australian Museum 8 (2): 145 - 218.", "Petrescu, I. 2006. Nannastacidae (Crustacea: Cumacea) from eastern Bass Strait, the south-eastern Australian slope, and Antarctica in the collections of Museum Victoria. Memoirs of Museum Victoria 63 (2): 129 - 173. https: // doi. org / 10.24199 / j. mmv. 2006.63.14"]}