Trigonostomum messoplanoides ARTOIS ET AL. 2000
Description
TRIGONOSTOMUM MESSOPLANOIDES ARTOIS ET AL., 2000
(FIG. 6B)
Alternative species name: trigonostomummessoplanoides
Trigonostomum messoplanoides Artois et al., 2000: 104–105, fig. 1.
Known distribution: Weddell Sea, Antarctica (Artois et al., 2000).
Material examined: Holotype (LUC, no. 207).
Diagnosis: Trigonostomum species with stylet 225 Mm long, proximally bent over 270∞. Mantle with stylet 75 Mm long, flagelliform spine surrounding only the distal part of the stylet. Bursal appendage 22 Mm long, with a proximal ring and two distal tubes.
Remarks: The copulatory organ of T. messoplanoides resembles that of some species of Messoplana (Artois et al., 2000), for instance M. elegans (Luther, 1948) Den Hartog, 1966, M. helgolandica Ax, 1971, M. pacifica Karling, 1986 and M. rugata Ehlers, 1974. However, the presence of a ventral invagination clearly confirms that it is a species of Trigonostomum.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- LUC
- Family
- Trigonostomidae
- Genus
- Trigonostomum
- Kingdom
- Animalia
- Order
- Rhabdocoela
- Phylum
- Platyhelminthes
- Species
- messoplanoides
- Taxon rank
- species
- Type status
- holotype
- Taxonomic concept label
- Trigonostomum messoplanoides ET, 2000 sec. Willems, Artois, Vermin & Schockaert, 2004
References
- Artois T, Vermin W, Schockaert E. 2000. Rhabdocoela (Platyhelminthes) from the Weddell Sea (Antarctica) with the description of eight new species. Belgian Journal of Zoology 130: 103 - 110.
- Luther A. 1948. Untersuchungen an Rhabdocoelen Turbellarien. VII. Uber einige marine Dalyellioida. VIII. Beitrage zur Kenntnis der Typhloplanoida. Acta Zoologica Fennica 55: 3 - 122.
- Ax P. 1971. Zur Systematik und Phylogenie der Trigonostominae (Turbellaria, Neorhabdocoela). Mikrofauna des Meeresbodens 4: 141 - 220.
- Karling TG. 1986. Free-living marine Rhabdocoela (Platyhelminthes) from the N. American Pacific coast. With remarks on species from other areas. Zoologica Scripta 15: 201 - 219.
- Ehlers U, Ax P. 1974. Interstitielle Fauna von Galapagos VIII. Trigonostominae (Turbellaria, Typhloplanoida). Mikrofauna des Meeresbodens 30: 641 - 671.