Diphascon wuyingensis Sun & Zhang & Wang & Zhao & Luo 2020, sp. nov.

• Main Authors: Sun, Xue-Ling, Zhang, Jing-Yu, Wang, Ning, Zhao, Min, Luo, Xue-Gang
• Format: Text
• Language: unknown
• Published: Zenodo 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Tardigrada; Eutardigrada; Parachela; Hypsibiidae; Diphascon; Diphascon wuyingensis; Antarctic; The Antarctic; Austin; Malek; Antarc*; Tardigrade
• Online Access: https://dx.doi.org/10.5281/zenodo.5587159; https://zenodo.org/record/5587159

Diphascon wuyingensis sp. nov. (Table 1, Figures 1–3) Description of the new species Animals (measurements and statistics in Table 2) Body colourless and slender. Eyes absent (in live specimens) and the cuticle was smooth. Oral cavity armature not visible under PCM. Buccopharyngeal apparatus of the Diphascon type. Apophyses for the insertion of the stylet muscles hook-shaped. The buccopharyngeal tube with a drop-shaped formation on the buccal/pharyngeal tube boundary (Fig. 1B). Muscle pharynx ovoid, with small pharyngeal apophyses and three macroplacoids in the shape of slender rods of increasing length from first to third, with the second clearly longer than the first (macroplacoid length sequence: 1<2<3; Table 2). Microplacoid and septulum absent (Fig. 1 A–C). Claws of the Hypsibius type, small, without sutures or light-refracting units and pseudolunulae (Fig. 2), but with accessory points on primary branches (Fig. 3D). Cuticular bars under claws absent. Eggs: Not found. DNA sequences The 18S rRNA marker was sequenced for both individual and pooled tardigrades, but COI was successfully sequenced only from one individual tardigrade. All 18S rRNA sequences represented a single haplotype (MK387067) and the sequence was 1716 bp long whereas the COI sequence (MK392633) was 658 bp long (the sequences are also provided in the Appendix 1). Type locality. 48º07.25’N, 129º11.19’E; 331 m asl: China, Heilongjiang Province, Wuying district of Yichun; habitat: shady urban park; substrate: mosses on a fallen log. Etymology. The new species is named after the Wuying district of Yichun, China, where it was discovered. Type depositories . The holotype (IAE036451) and one paratype (IAE036452) are deposited at the Herbarium of Institute of Applied Ecology, CAS, Shenyang. Four paratypes (NMS0001–4) are deposited at the Microbiological Lab, College of Life Sciences, Northeast Forestry University, Harbin. : Published as part of Sun, Xue-Ling, Zhang, Jing-Yu, Wang, Ning, Zhao, Min & Luo, Xue-Gang, 2020, A new species of Diphascon (Tardigrada: Hypsibiidae) from Northern China supported by integrated taxonomy, pp. 185-194 in Zootaxa 4722 (2) on pages 187-188, DOI: 10.11646/zootaxa.4722.2.5, http://zenodo.org/record/3605853 : {"references": ["Bertolani, R., Guidetti, R., Marchioro, T., Altiero, T., Rebecchi, L. & Cesari, M. (2014) Phylogeny of Eutardigrada: new molecular data and their morphological support lead to the identification of new evolutionary lineages. Molecular Phylogenetics and Evolution, 76, 110 - 126. https: // doi. org / 10.1016 / j. ympev. 2014.03.006", "Sands, C. J., McInnes, S. J., Marley, N. J., Goodall-Copestake, W. P., Convey, P. & Linse, K. (2008) Phylum Tardigrada an ' ' indi- vidual' ' approach. Cladistics, 28, 861 - 871. https: // doi. org / 10.1111 / j. 1096 - 0031.2008.00219. x", "Kosztyla, P., Stec, D., Morek, W., Gasiorek, P., Zawierucha, K., Michno, K., Ufir, K., Malek, D., Hlebowicz, K., Laska, A., Dudziak, M., Frohme, M., Prokop, Z. M., Kaczmarek, L. & Michalczyk, L. (2016) Experimental taxonomy confirms the environmental stability of morphometric traits in a taxonomically challenging group of microinvertebrates. Zoological Journal of the Linnean Society, 178 (4), 765 - 775. https: // doi. org / 10.1111 / zoj. 12409", "Guil, N. & Giribet, G. (2011) A comprehensive molecular phylogeny of tardigrades-adding genes and taxa to a poorly resolved phylum-level phylogeny. Cladistics, 28 (1), 21 - 49. https: // doi. org / 10.1111 / j. 1096 - 0031.2011.00364. x", "Velasco-Castrillon, A., McInnes, S. J., Schultz, M. B., Arroniz-Crespo, M., D'Haese, C. A., Gibson, J. A. E., Adams, B. J., Page, T. J., Austin, A. D., Cooper, S. J. B. & Stevens, M. I. (2016) Mitochondrial DNA reveals hidden diversity for tardigrades from across the Antarctic realm. Invertebrate Systematics, 29 (6), 578 - 590. https: // doi. org / 10.1071 / is 14019"]}