Mesomyzostoma lobus Rouse, Lanterbecq, Summers and Eeckhaut, sp. nov.
In: Four new species of Mesomyzostoma (Myzostomida: Annelida), pp. 1-23 in Journal of Natural History 50(1) 11-13, 2016, S. 1-23
unknown
Zugriff:
Mesomyzostoma lobus Rouse, Lanterbecq, Summers and Eeckhaut sp. nov. (Figure 4) Mesomyzostoma n. sp. 1 in Lanterbecq et al. (2006, 2009, 2010) Mesomyzostoma n. sp. 1 in Summers and Rouse (2014) Material examined Horseshoe Reef, Lizard Island Great Barrier Reef (Australia), 14°38.655' S, 145°27.267ʹ E; 5 m depth. Collector: Greg Rouse, 17 November 2001. Many body parts of several specimens in several Clarkcomanthus albinotus Rowe, Hoggett, Birtles and Vail, 1986 (Comatulidae). Holotype (SAM- E3963) mostly fixed in formalin and preserved in 70% ethanol, part placed in 95% ethanol and used for DNA sequencing. Paratypes: SAM- E3412, E3413, fixed in formalin and preserved in 70% ethanol; SIO-BIC A4076, 3 (juveniles) fixed in formalin and preserved in 70% ethanol; SIO-BIC A4077, fragments fixed in formalin and preserved in 70% ethanol; SIO-BIC A4078, fragments fixed in 95% ethanol. One incomplete specimen, from paratype lot SIO-BIC A4076, dissolved in bleach for observation of parapodial hook apparatus. Another specimen, from paratype lot SIO-BIC A4078, destroyed for DNA extraction and molecular phylogenetic analyses. Etymology Noun from Latin, lobus, referring to the lobate nature of the specimens. Diagnosis Large Mesomyzostoma with body having central trunk giving rise to multifurcating lobes. No introvert, no lateral organs or cirri. Number of chaetigers unknown, inconspicuous chaetae present, located close to trunk margin. Emergent hooks small with thin shaft, tip curving 80° with respect to shaft. No replacement hooks. Mouth at end of anterior part of trunk. Simultaneous hermaphrodite. Parasitic in coelom of crinoid oral disc. Description Holotype in coelom of swollen oral disc of crinoid host (Figure 4 A, B). Extracted incomplete, anterior piece 3 mm long, 2 mm wide (Figure 4 C). Central part of trunk 1 mm wide and 0.2 mm thick, flattened with mouth anterior, and numerous curled multifurcating lobes (Figure 4 C – E) extending from lateral and ventral sides of trunk (Figure 4 C). No introvert, no lateral organs, ...
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Mesomyzostoma lobus Rouse, Lanterbecq, Summers and Eeckhaut, sp. nov.
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Autor/in / Beteiligte Person: | Rousea, Greg W. ; Lanterbecq, Deborah ; Summersa, Mindi M. ; Eeckhaut, Igor |
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Zeitschrift: | Four new species of Mesomyzostoma (Myzostomida: Annelida), pp. 1-23 in Journal of Natural History 50(1) 11-13, 2016, S. 1-23 |
Veröffentlichung: | 2016 |
Medientyp: | unknown |
DOI: | 10.5281/zenodo.5672668 |
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