Campylaspis gherasimi 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 gherasimi; Lowry; Seta; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.5237013; https://zenodo.org/record/5237013

Campylaspis gherasimi sp. nov. Fig. 13 Holotype subadult ♂, 6.14 mm, P.64834, Australia, NSW, east of Long Reef, -33.72° 151.77°, 174 m, epibenthic sled, 20 Dec 1985, J.K. Lowry, R. T. Springthorpe, FRV Kapala , K85-21-08, in AM. Paratype : 1♂, P.88246. Etymology . The species is dedicated in honour of Paul Gherasim, famous Romanian painter, as a sign of love and highly respect for all he has done for me and my family. Diagnosis . Carapace, 0.44 body length, almost rectangular in dorsal view; maxilliped 3 basis, 0.83 rest of article’s length; pereopod 2 dactylus 2.6 propodus length; uropodal peduncle 2.4 pleonite 6, 1.85 endopod length; exopod 0.8 endopod length. Description . Carapace , 0.44 body length, 2 as long as high, 1.38 as long as wide, almost rectangular in dorsal view, anterior margin rectangular, with median elevation, rounded anteroventral corner; large lateral sulcus opening posteriorly, transverse ridge on anterior part; pair of large crests on posterior end; eyelobe very small, without lenses; pseudorostrum 0.21 carapace length; carapace covering first 2 pereonites (Fig. 13 A, B). — Pleonites 1–4 each with pair of dorsal tubercles and pair of lateral crests, pleonite 5 with mid-dorsal ridge, 2 pairs of oblique ridges towards dorsal ridge, 1 pair of lateral crests, pleonite 6 without ornamentation. — Antenna 1 peduncle article 1 0.74 rest of article’s length; main flagellum 1.2 peduncle articles 1 and 2 length, accessory flagellum with 1 article; aesthetascs 0.7 main flagellum length (Fig. 13 C). — Maxilliped 3 , basis, 0.83 rest of article’s length, with 3 plumose setae; ischium 0.08 basis length, with 1 tooth; merus 6.4 ischium length, serrate margins, with 2 plumose setae; carpus, 0.65 merus length, with serrate margins, with 2 pappose setae, 1 plumose seta; propodus 0.37 carpus length, with 5 pappose setae; dactylus 0.5 propodus length, with 3 simple setae; with exopod (Fig. 13 D). — Pereopod 1 basis 0.9 rest of article’s length; merus 6.6 ischium length; carpus 1.25 merus length, with 6 simple setae; propodus 0.6 carpus length, 5 simple setae; dactylus 0.6 propodus length, with 3 simple setae; with exopod (Fig. 13 E). — Pereopod 2 , basis 0.6 rest of article’s length; ischium to dactylus much slender than basis; merus 5.5 ischium length, with 1 simple seta; carpus 1.5 merus length, with 5 simple setae; dactylus 2.6 propodus length, with 10 microserrate setae; with exopod (Fig. 13 F). — Pereopod 3 , basis 1.4 rest of article’s length, with 1 simple seta; ischium with 1 simple seta; merus 1.6 ischium length, with 1 simple seta; carpus 2.25 merus length, with 2 simple setae; propodus 0.44 carpus length, with 1 annulate seta; dactylus 0.5 propodus length, fused with terminal robust seta; with exopod (Fig. 13 G). — Pereopod 4 , basis 1.04 rest of article’s length; ischium with 1 simple seta; merus 2.2 ischium length, with 1 simple seta; carpus 2.18 merus length, with 2 simple setae; propodus 0.6 carpus length; dactylus 0.5 propodus length, fused with terminal robust seta; with exopod (Fig. 13 H). — Pereopod 5 , basis 0.6 rest of article’s length; ischium 0.18 basis length, with 1 simple seta; merus 3 ischium length, with 1 simple seta; carpus 1.13 merus length, with 1 simple seta; propodus 0.4 carpus length, with 1 annulate seta; dactylus 0.5 propodus length, fused with terminal robust seta (Fig. 13 I). — Uropod peduncle 2.4 pleonite 6 length, 1.85 endopod length, serrate medially; exopod 0.8 endopod length, 1 subterminal simple and 1 terminal microserrate simple seta, 0.57 exopod length; endopod with 8 microserrate setae, 1 robust terminal microserrate seta, 0.57 endopod length (Fig. 13 J). Remarks . The carapace of C. gherasimi sp. nov. is more rectangular in dorsal view than C . rectangulata Petrescu, 2006, but has a transverse ridge anteriorly as in C . dumitrumurariui sp. nov. and C. edenensis Petrescu (2006). The new species has a massive merus and carpus of maxilliped 3 as in C. mioarae sp. nov., but without a process on the medial margin of the basis; pereopod 2 dactylus without a digitiform tip like in C. dumitrumurariui , C. mioarae , not like in C. rectangulata the new species has an uropodal endopod with 8 medial setae, not like in other Australian species with 9 or 10 setae. Distribution . Australia: NSW—east of Long Reef, at 174 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 page 15, DOI: 10.3853/j.2201-4349.70.2018.1645, http://zenodo.org/record/5236860 : {"references": ["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"]}