RT Journal Article
T1 Meristoderes gen. nov., a new kinorhynch genus, with the description of two new species and their implications for echinoderid phylogeny (Kinorhyncha: Cyclorhagida, Echinoderidae)
A1 Herranz, María
A1 Thormar, Jonas
A1 Benito, Jesús
A1 Sánchez Santos, Nuria
A1 Pardos Martínez, Fernando
AB A new kinorhynch genus, Meristoderes gen. nov., and two new species from Spain and the Solomon Islands, respectively, are described. The new genus is distinguished from all other genera by the first segment consisting of a closed cuticular ring, and the second segment having partial tergosternal junctions, and a superficial midventral fold. This is a new cuticular configuration that may shed light into the phylogenetic relationships of echinoderid kinorhynchs. Meristoderes macracanthus gen. et sp. nov. from the Mediterranean coast of Spain is recognised by the presence of middorsal spines on segments 4, 6 and 8, ventrolateral tubules on segment 2, lateroventral tubules on segment 5, lateroventral spines on segments 6–9, lateral accessory tubules on segment 8, one pair of laterodorsal tubules on segment 10. Meristoderes galatheae sp. nov. from the Solomon Islands is recognized by having a middorsal spine on segment 4 only, ventrolateral tubules on segment 2, lateroventral tubules on segment 5, lateroventral spines on segments 6–9, lateral accessory tubules on segment 8 and subdorsal tubules on segment 10. Both species have a pattern of paraventral perforation site clusters on segments 3–9, with conspicuously long bracteate hairs from the posteriormost perforations sites on the segments 3–7 and 3–6, respectively.The new genus Meristoderes gen. nov. is included into the family Echinoderidae Bütschli, 1876 and appears closely related with the genera Cephalorhyncha Adrianov, 1999 and Echinoderes Claparède, 1863. The new information it provides is discussed to clarify the internal phylogeny of Echinoderidae. The terminology for cuticular characters in the overlapping area between consecutive segments is also standardized.
PB Elsevier
SN 0044-5231
YR 2012
FD 2012
LK https://hdl.handle.net/20.500.14352/101084
UL https://hdl.handle.net/20.500.14352/101084
LA eng
NO Herranz, María, et al. «Meristoderes Gen. Nov., a New Kinorhynch Genus, with the Description of Two New Species and Their Implications for Echinoderid Phylogeny (Kinorhyncha: Cyclorhagida, Echinoderidae)». Zoologischer Anzeiger - A Journal of Comparative Zoology, vol. 251, n.o 3, agosto de 2012, pp. 161-79. https://doi.org/10.1016/j.jcz.2011.08.004.
NO This work has been conducted with financial support of Ministerio de Ciencia y Tecnología, Plan Nacional de Investigación Científica, Desarrollo e Investigación Tecnológica (CGL2009-08928) to F. Pardos. It also received support from the SYNTHESYS Project http://www.synthesys.info/ which is financed by European Community Research Infrastructure Action under the FP6 “Structuring the European Research Area Programme” to M. Herranz. Funding for the collection of material from the Solomon Islands was provided by the Villum Kahn Rasmussen Foundation to Reinhardt Møbjerg Kristensen and co-investigators, and by ‘Carlsbergs Mindelegat’ to J. Thormar. This is publication number P73 of the Danish Galathea 3 expedition.
NO Ministerio de Ciencia y Tecnología (España)
NO European Commission
NO Villum Kahn Rasmussen Foundation
NO Carlsbergs Foundation
DS Docta Complutense
RD 17 abr 2025