Trigonostomum breitfussi

• Main Authors: Willems, Wim R., Artois, Tom J., Vermin, Wouter A., Schockaert, Ernest R.
• Format: Text
• Language: unknown
• Published: Zenodo 2004
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Rhabditophora; Rhabdocoela; Trigonostomidae; Trigonostomum; Trigonostomum breitfussi; Barents Sea; Greenland; Norway; Kristineberg; Willems; Arktis*
• Online Access: https://dx.doi.org/10.5281/zenodo.5110797; https://zenodo.org/record/5110797

TRIGONOSTOMUM BREITFUSSI (GRAFF, 1905) MEIXNER 1924 (FIG. 7E) Alternative species name: trigonostomum-breitfussi. Hyporcus breitfussi Graff, 1905: 112, t. 3, figs 12–16; 1913: 301–302, figs 261, 262. Hyporhynchus breitfussi Meixner, 1925: 256. Trigonostomum breitfussi Meixner, 1924b: 89, 91–94, 96–99, 105, figs 3, 4; Steinböck, 1932: 309; Ax, 1952: 91–92, fig. 2; Westblad, 1954: 9; Armonies & Hellwig-Armonies, 1987: 104, table 5; Joffe & Kotikova, 1989: 70–72, 74–77, 79–82, figs 2, 3, 6 and 7. Known distribution: Barents Sea (Graff, 1905), Baltic Sea (Ax, 1952), Greenland (Steinböck, 1932), North Sea (Meixner, 1924b, 1925; Ax, 1952; Armonies & Hellwig-Armonies, 1987), Norway (Westblad, 1954). New locality: Sweden, Gullmaren, Kristineberg, 23, 26 and 27 July 1932, Westblad (coll. SMNH; type locality). Sweden, Gullmaren, on algae, 6 August 1945, Westblad (coll. SMNH). Sweden, Gullmaren, Harpo Bedar, on red algae, 20 m deep, 7 August 2001. Material examined: Observations on live material from Sweden. Neotype (SMNH, no. 47461). Two whole mounts (SMNH, nos. 47462–3) and two serially sectioned specimens (SMNH, nos. 47469–70) from Sweden. Diagnosis: Trigonostomum species with copulatory organ ± 62 Mm long. Stylet ± 64 Mm long, proximally bent over, 180∞ and with a crest. Mantle with one blunt plate (shorter than the stylet), surrounds only the distal part of the stylet. Bursal appendage 20– 24 Mm long, proximally with a barrel-like casing and nine or ten distal tubes. Remarks: The observation of Ax (1952) that there is only one plate-like structure instead of two (Graff, 1905), surrounding the tubiform stylet, can be confirmed. This plate has a spine-like projection at its distal end, which lies close to the stylet but is displaced in highly squeezed animals (Fig. 7E 1). The bursal appendage is short (Graff, 1913 24 Mm; Ax, 1952: 20– 21 Mm), barrel-shaped and consists of nine, maybe ten, short tubes (Fig. 7E 3). : Published as part of Willems, Wim R., Artois, Tom J., Vermin, Wouter A. & Schockaert, Ernest R., 2004, Revision of Trigonostomum Schmidt, 1852 (Platyhelminthes, Typhloplanoida, Trigonostomidae) with the description of seven new species, pp. 271-296 in Zoological Journal of the Linnean Society 141 (2) on page 286, DOI: 10.1111/j.1096-3642.2004.00124.x, http://zenodo.org/record/4634553 : {"references": ["von Graff L. 1905. Marine Turbellarien Orotavas und der Kusten Europas. II. Rhabdocoela. Zeitschrift fur Wissenschaftliche Zoologie 83: 68 - 148, Taf. II - VI.", "Meixner J. 1925. Beitrag zur Morphologie und zum System der Turbellaria-Rhabdocoela. I. Die Kalyptorhynchia. Zeitschrift fur Morphologie und Okologie der Tiere 3: 255 - 343, Taf. II - III.", "Meixner J. 1924 b. Studien zu einer Monographie der Kalyptorhynchia und zum System der Turbellaria-Rhabdocoela. Zoologischer Anzeiger 60: 89 - 105, 113 - 125.", "Steinbock O. 1932. Die Turbellarien des arktischen Gebietes. Fauna Arctica 6: 295 - 342.", "Ax P. 1952. Turbellaria Trigonostominae aus der Kieler Bucht. Kieler Meeresforschungen 9: 90 - 93.", "Westblad E. 1954. Some Hydroidea and Turbellaria from Western Norway with description of three new species of Turbellaria. Publications from the Biological Station 11: 1 - 22.", "Armonies W, Hellwig-Armonies M. 1987. Synoptic patterns of meiofaunal and macrofaunal abundances and specific composition in littoral sediments. Helgolander Meeresuntersuchungen 41: 82 - 111.", "Joffe BI, Kotikova EA. 1989. Catecholamines in the nervous system of turbellarians from the family Trigonostomidae (Neorhabdocoela, Typhloplanoida). Proceedings of the Zoological Institute, Leningrad 195: 70 - 83. (In Russian.)", "von Graff L. 1913. Das Tierreich 35. Turbellaria II. Rhabdocoelida. Berlin."]}