TY - JOUR A1 - Lee, Geon Hyeok A1 - Lee, Ha-Eun A1 - Min, Gi-Sik T1 - Morphology and phylogeny of a new polychaete, Prionospio expansa (Annelida: Spionidae) from the intertidal zone of the Yellow Sea, Korea Geon Hyeok Lee T2 - European journal of taxonomy N2 - A new spionid polychaete, Prionospio expansa sp. nov., collected from the intertidal habitat of the Yellow Sea in Korea, is described. The new species is closely related to P. japonica Okuda, 1935 from Northeast Asia both morphologically and genetically. They share four pairs of branchiae which are cirriform and apinnate, whereas the new species differs from P. japonica in the length of the branchiae, expansion of the anteriormost body, and size of the first notopodial postchaetal lamellae. Herein, a detailed description and illustrations of P. expansa sp. nov. are provided, with molecular data for three gene fragments: mitochondrial cytochrome c oxidase subunit I, 16S ribosomal DNA (rDNA), and nuclear 18S rDNA. A phylogenetic analysis was conducted based on mitochondrial and nuclear gene fragments. T3 - European journal of taxonomy : EJT - 885:86-98 KW - molecular analysis KW - phylogenetic analysis KW - pigmentation KW - Polychaeta KW - Korean waters Y1 - 2023 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71417 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-714178 SN - 2118-9773 VL - 2023 IS - 885 SP - 86 EP - 98 PB - Muséum National d'Histoire Naturelle CY - Paris ER -