Published December 31, 2016 | Version v1
Taxonomic treatment Open

Mesomyzostoma Remscheid 1918

Description

Genus Mesomyzostoma Remscheid, 1918

Diagnosis

Myzostomatid with flattened, cylindrical or extremely branching lobate bodies; no cirri. Up to five chaetigers, parapodia very low, with small emergent hooks ventrally, distributed along body. Aciculae present, each with manubrium. Mouth at anterior tip of body. Cloaca (exit for digestive tract and uterus) at posterior tip of body. Body translucent or whitish or orange. Digestive diverticulae arising from central gut tube. Simultaneous hermaphrodites. One pair of male seminal vesicles opening at level of third pair of parapodia. No penes. Eggs filling dorsal side. Parasite of crinoid coelom.

Note: SAM, South Australian Museum; SIO-BIC, Benthic Invertebrate Collection, Scripps Institution of Oceanography.

New sequences in bold. Column a.k.a. refers to the alternative names previous used for the four new species described here in previous publications (Lanterbecq et al. 2006, 2009, 2010; Summers and Rouse 2014).

Remarks

Mesomyzostoma was formerly in its own family, Mesomyzostomatidae, but is now regarded as part of Myzostomatidae (Summers and Rouse 2014).

Notes

Published as part of Greg W. Rousea, Deborah Lanterbecq, Mindi M. Summersa & Igor Eeckhaut, 2016, Four new species of Mesomyzostoma (Myzostomida: Annelida), pp. 1-23 in Journal of Natural History 50 (1) on pages 3-5, DOI: 10.1080/00222933.2015.1056266, http://zenodo.org/record/163246

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Linked records

Additional details

Biodiversity

References

  • Remscheid E. 1918. Beitrage zur Kenntnis der Myzostomiden. Abh Senckenberg Naturf Ges. 35: 179 - 225.
  • Lanterbecq D, Rouse GW, Milinkovitch MC, Eeckhaut I. 2006. Molecular phylogenetic analyses indicate multiple independent emergences of parasitism in Myzostomida (Spiralia). Syst Biol. 55: 208 - 227.
  • Lanterbecq D, Rouse GW, Eeckhaut I. 2009. Bodyplan diversification in crinoid-associated myzostomids (Myzostomida, Protostomia). Invertebr Biol. 128: 283 - 301.
  • Lanterbecq D, Rouse GW, Eeckhaut I. 2010. Evidence for cospeciation events in the host-symbiont system involving crinoids (Echinodermata) and their obligate associates, the myzostomids (Myzostomida, Annelida). Mol Phylogenet Evol. 54: 357 - 371.
  • Summers MM, Al-Hakim I, Rouse GW. 2014. Turbotaxonomy: 21 new species of Myzostomida (Annelida). Zootaxa. 3873: 301 - 344.