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e-ased.org, vol. 34, no. 4, pp.194-198, 2018

DOI: https://doi.org/10.5635/ASED.2018.34.4.194

Prionchulus oleksandri (Nematoda: Mononchida) from Korea

Jiyeon Kim1,2, Taeho Kim2, Shi Hyun Ryu1, Joong-Ki Park2,*

Affiliation: 1Freshwater Biodiversity Research Division, Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea 2Division of EcoScience, Ewha Womans University, Seoul 03760, Korea

Abstract: The genus Prionchulus Cobb, 1916 represents a group of predaceous nematodes belonging to the family Mononchidae Chitwood, 1937, and is found worldwide. However, only five species have been reported thus far from Korea. Prionchulus oleksandri Winiszewska and Susulovsky, 2003 is reported for the first time from Korea, from sediments collected from the Nakdong River. This species is distinguished from other Prionchulus species by its truncated lip region with small cephalic papillae and refringens vaginae. In this study, morphological characters (detailed morphometrics) of P. oleksandri are described and illustrated using optical microscopy. DNA barcode sequence information (the D2-D3 region of 28S rDNA, 18S rDNA, and internal transcribed spacer rDNA) is also provided for the molecular identification of the species.

Keyword: nematode, Mononchidae, Prionchulus oleksandri, Korea