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A new cave amphipod, Pseudocrangonyx wonkimi sp. nov. (Crustacea, Amphipoda, Pseudocrangonyctidae), from the Korean Peninsula.

ABSTRACT: A new species of pseudocrangonyctid amphipod, Pseudocrangonyx wonkimi sp. nov., was found in the groundwater of a cave in the southwestern Korean Peninsula. Pseudocrangonyx wonkimi sp. nov. is morphologically most closely related to P. joolaeiLee et al., 2020. However, P. wonkimi is clearly distinguished from P. joolaei by lacking sternal gills, fewer setae on maxilla 1 inner plate, fewer serrate robust setae on the carpus of the gnathopods, lacking bifid setae on the inner ramus of pleopod 3, and fewer articles of rami on pleopod 3. We also determined sequences of mitochondrial cytochrome c oxidase subunit I (COI) of P. wonkimi sp. nov. for molecular diagnosis. From the molecular analysis based on COI sequences, P. wonkimi showed the closest relationship with P. joolaei with 15.1% genetic distance.

SUBMITTER: Lee CW 

PROVIDER: S-EPMC7445190 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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A new cave amphipod, <i>Pseudocrangonyx wonkimi</i> sp. nov. (Crustacea, Amphipoda, Pseudocrangonyctidae), from the Korean Peninsula.

Lee Chi-Woo CW   Tomikawa Ko K   Min Gi-Sik GS  

ZooKeys 20200817

A new species of pseudocrangonyctid amphipod, <i>Pseudocrangonyx wonkimi</i> <b>sp. nov.</b>, was found in the groundwater of a cave in the southwestern Korean Peninsula. <i>Pseudocrangonyx wonkimi</i> <b>sp. nov.</b> is morphologically most closely related to <i>P. joolaei</i>Lee et al., 2020. However, <i>P. wonkimi</i> is clearly distinguished from <i>P. joolaei</i> by lacking sternal gills, fewer setae on maxilla 1 inner plate, fewer serrate robust setae on the carpus of the gnathopods, lacki  ...[more]

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