Styraconyx kristenseni subsp. kristenseni Renaud-Mornant 1981

• Main Authors: Bartels, Paul J., Fontoura, Paulo, Nelson, Diane R.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Tardigrada; Heterotardigrada; Arthrotardigrada; Halechiniscidae; Styraconyx; Styraconyx kristenseni; Styraconyx kristenseni kristenseni renaud-Mornant, 1981; Greenland; Pacific; New Zealand; Renaud; Kristensen; Faroe Bank; Disko Bay; Tardigrade
• Online Access: https://dx.doi.org/10.5281/zenodo.5678908; https://zenodo.org/record/5678908

Styraconyx kristenseni kristenseni Renaud-Mornant, 1981 Table 1 Material examined. Three specimens, one female 177 µm long and two specimens of undetermined gender (132– 171 µm long), collected in coral sand at Cook’s Bay, 0.5 –1.0 m depth. Remarks. This species is known from the Atlantic Ocean (Faroe Banks), Mediterranean (Adriatic Sea, Ionian Sea, Tyrrhenian Sea), Pacific Ocean (New Zealand, French Polynesia, Coral Sea, Tasman Sea), and the Red Sea (Renaud-Mornant 1981; de Zio Grimaldi et al. 1983 a, b, 2003; Kristensen & Higgins 1984; D’Addabbo Gallo et al. 1989; Boesgaard & Kristensen 2001; Hansen et al. 2001). Styraconyx kristenseni was originally described from Moorea Island, French Polynesia, by Renaud-Mornant (1981), with additional specimens collected from French Polynesia (Reao and Mururoa Atolls, in the Tuomoto Archipelago, previously identified as Styraconyx sargassi Thulin, 1942 (Renaud-Mornant 1976)). The subspecies Styraconyx kristenseni neocaledonensis Renaud-Mornant, 1981 was also identified from New Caledonia from specimens previously identified as Styraconyx sargassi (Renaud-Mornant 1981). The species is characterized by having peduncles on external claws only and short clavae (measuring less than 50 % of cirri A , Table 1). The two subspecies are distinguished by the leg sense organs: Styraconyx kristenseni neocaledonensis Renaud-Mornant, 1981, characterized by the presence of minute (just spurs) sense organs on legs I–III from New Caledonia, and Styraconyx kristenseni kristenseni Renaud-Mornant, 1981, with normally developed spines on legs I–III, from Polynesia. The specimens examined in this study, although having a larger body size, stronger external peduncles and slightly shorter primary clavae/lateral cirri A ratio, otherwise fit the original description of S. kristenseni kristenseni (Table 1). S. turbinarium sp. nov. S. tyrrhenus S. craticulus S. kristenseni kristenseni S. kristenseni th leg sense 10.1 9.8? 9 11.7 12.9 9.2? 10 organ Primary 0.52 0.53? 0.30 0.50 0.41 0.34? 0.45 clavae/Lateral cirri A : Published as part of Bartels, Paul J., Fontoura, Paulo & Nelson, Diane R., 2015, New records of marine tardigrades from Moorea, French Polynesia, with the description of Styraconyx turbinarium sp. nov. (Arthrotardigrada, Halechiniscidae), pp. 389-402 in Zootaxa 3955 (3) on pages 393-394, DOI: 10.11646/zootaxa.3955.3.6, http://zenodo.org/record/239010 : {"references": ["Renaud-Mornant, J. (1981) Tardigrades marins (Arthrotardigrada) du Pacifique Sud. Bulletin du Museum National d'Histoire Naturelle Paris, Serie 4 e, 3, 799 - 813.", "de Zio Grimaldi, S., D'Addabbo Gallo, M. & Morone De Lucia, M. R. (1983 a) Marine tardigrades of the \" Secca dell'Armeleia \" (Ionian sea), and redescription of Raiarctus colurus Renaud-Mornant 1981 (Heterotardigrada). Oebalia, 9, 33 - 42.", "de Zio Grimaldi, S., D'Addabbo Gallo, M. & Morone de Lucia, M. R. (1983 b) Marine tardigrades ecology. Oebalia, 9, 15 - 31.", "de Zio Grimaldi, S., D'Addabbo Gallo, M., Sandulli, R. & D'Addabbo, R. (2003) Checklist of the Italian marine Tardigrada. Meiofauna Marina, 12, 97 - 135.", "Kristensen, R. M. & Higgins, R. P. (1984) Revision of Styraconyx (Tardigrada: Halechiniscidae) with description of two new species from Disko Bay, West Greenland. Smithsonian Contributions to Zoology, 391, 1 - 40. http: // dx. doi. org / 10.5479 / si. 00810282.391", "D'Addabbo Gallo, M., Morone De Lucia, M. R. & de Zio Grimaldi, S. (1989) Two new species of the genus Styraconyx (Tardigrada: Heterotardigrada). Cahiers de Biologie Marine, 30, 17 - 33.", "Boesgaard, T. M. & Kristensen, R. M. (2001) Tardigrades from Australian marine caves with a redescription of Actinarctus neretinus (Arthrotardigrada). Zoologischer Anzeiger, 240, 253 - 264. http: // dx. doi. org / 10.1078 / 0044 - 5231 - 00033", "Hansen, J. G., Jorgensen, A. & Kristensen R. M. (2001) Preliminary studies of the tardigrade fauna of the Faroe Bank. Zoologischer Anzeiger, 240, 385 - 393. http: // dx. doi. org / 10.1078 / 0044 - 5231 - 00046", "Thulin, G. (1942) Ein neuer mariner Tardigrad. Meddelanden fran Goteborgs Musei Zoologiske Avdeling, 99, 1 - 10.", "Renaud-Mornant, J. (1976) Le genre Florarctus Delamare Deboutteville et Renaud-Mornant, 1965 en Mediterranee; description de deux especes nouvelles (Arthrotardigrada). Bulletin du Museum National d'Histoire Naturelle Paris, Serie 4 e, 3, 257, 325 - 333."]}