A New Species of the Genus Robertgurneya Apostolov & Marinov, 1988 (Copepoda: Harpacticoida: Miraciidae) from a Sublittoral Zone of Jeju Island, Korea

A new species, Robertgurneya jejuensis sp. nov., was described from sandy sediment samples collected at a depth of 25 m on Mun Island, Jeju, in June 2018. The species is morphologically similar to similis (Scott A., 1896) and donghaensis Bang, 2021; this the second record genus South Korea. morphological characteristics group within Robertgurneya, which ascribed, are summarized here. Furthermore, an identification key provided based summary. Molecular specimens, nuclear 18S ribosomal RNA (18S rRNA) mitochondrial cytochrome oxidase subunit I fragment, obtained. Finally, phylogenetic tree constructed present position Miraciidae family rRNA sequences relatively conserved. As result, relationship with sister genera also molecularly confirmed.