Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea

Four new species of Pycnophyes are described from Korean waters and the East China Sea. Pycnophyes pardosi n. sp. is distinguished from other congeners by the presence of a single paradorsal seta on segments 2-8 and a pair on segment 9, combined with the presence of longitudinal cuticular thickening...

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Main Authors: Nuria Sánchez, Hyun Soo Rho, Won Gi Min, Dongsung Kim, Martin Vinther Sørensen
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2013-06-01
Series:Scientia Marina
Subjects:
Online Access:http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1460
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author Nuria Sánchez
Hyun Soo Rho
Won Gi Min
Dongsung Kim
Martin Vinther Sørensen
author_facet Nuria Sánchez
Hyun Soo Rho
Won Gi Min
Dongsung Kim
Martin Vinther Sørensen
author_sort Nuria Sánchez
collection DOAJ
description Four new species of Pycnophyes are described from Korean waters and the East China Sea. Pycnophyes pardosi n. sp. is distinguished from other congeners by the presence of a single paradorsal seta on segments 2-8 and a pair on segment 9, combined with the presence of longitudinal cuticular thickenings on the dorsal and ventral sides of segment 10. Pycnophyes chalgap n. sp. is easily distinguished by the shape of its midsternal plate with the rounded posterior margin, extending beyond and overlapping half of the following segment. Pycnophyes cristatus n. sp. is recognized by its lack of ventromedial setae on segments 3-6 combined with the presence of pointed middorsal processes that turn progressively longer towards the posterior segments from segment 6. The process on segment 10 is conspicuously long, extending beyond the posterior margin of segment 11. Pycnophyes smaug n. sp. is distinguished by its general scarcity of setae which, with the exception of those in lateroventral positions, only appear in laterodorsal positions on segments 2 and 9 and in ventromedial position on segment 9. The description of four additional species brings the total number of valid kinorhynch species around the Korean Peninsula up to 26.
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spelling doaj.art-0fe0e95d330f4053a841a631b26819502022-12-21T22:47:41ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342013-06-0177235338010.3989/scimar.03769.15A1436Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China SeaNuria Sánchez0Hyun Soo Rho1Won Gi Min2Dongsung Kim3Martin Vinther Sørensen4Department of Zoology and Anthropology (Invertebrate Zoology), Faculty of Biological Sciences, Universidad Complutense de MadridDokdo Research Center, Korea Institute of Ocean Science and TechnologyDokdo Research Center, Korea Institute of Ocean Science and TechnologyMarine Living Resources Research Department, Korea Institute of Ocean Science and TechnologyNatural History Museum of Denmark, University of CopenhagenFour new species of Pycnophyes are described from Korean waters and the East China Sea. Pycnophyes pardosi n. sp. is distinguished from other congeners by the presence of a single paradorsal seta on segments 2-8 and a pair on segment 9, combined with the presence of longitudinal cuticular thickenings on the dorsal and ventral sides of segment 10. Pycnophyes chalgap n. sp. is easily distinguished by the shape of its midsternal plate with the rounded posterior margin, extending beyond and overlapping half of the following segment. Pycnophyes cristatus n. sp. is recognized by its lack of ventromedial setae on segments 3-6 combined with the presence of pointed middorsal processes that turn progressively longer towards the posterior segments from segment 6. The process on segment 10 is conspicuously long, extending beyond the posterior margin of segment 11. Pycnophyes smaug n. sp. is distinguished by its general scarcity of setae which, with the exception of those in lateroventral positions, only appear in laterodorsal positions on segments 2 and 9 and in ventromedial position on segment 9. The description of four additional species brings the total number of valid kinorhynch species around the Korean Peninsula up to 26.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1460biodiversitymeiofaunapycnophyidaemorphologytaxonomykorean peninsula
spellingShingle Nuria Sánchez
Hyun Soo Rho
Won Gi Min
Dongsung Kim
Martin Vinther Sørensen
Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea
Scientia Marina
biodiversity
meiofauna
pycnophyidae
morphology
taxonomy
korean peninsula
title Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea
title_full Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea
title_fullStr Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea
title_full_unstemmed Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea
title_short Four new species of Pycnophyes (Kinorhyncha: Homalorhagida) from Korea and the East China Sea
title_sort four new species of pycnophyes kinorhyncha homalorhagida from korea and the east china sea
topic biodiversity
meiofauna
pycnophyidae
morphology
taxonomy
korean peninsula
url http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1460
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