title: Plerocercoids of Nybelinia surmenicola (Cestoda: Tentacularidae) in Squids, Todarodes pacificus, from East Sea, the Republic of Korea.
abstract: A visceral helminth of the squid, Todarodes pacificus, is reported from the East Sea, the Republic of Korea. Total 39 squid samples were purchased from a fish market in Jumunjin-eup, Gangneung-si (City) from August 2014 to July 2015 and were examined for helminth parasites with naked eyes and under a stereomicroscope after opening the abdominal cavity with a pair of scissors. Whitish larval worms were mainly found in the stomach and abdominal cavity of the squid. They were detected in 25 (64.1%) out of 39 squids examined, and the infection density was 7 larvae per infected squid. Spatula-shaped larvae were 8.2×2.0 mm in average size, round to slightly flattened anteriorly, with round hatching posteriorly, and had characteristic 4 tentacles with numerous hooklets in the scolex. The larvae were identified as the plerocercoid stage of Nybelinia surmenicola by their morphological features. This finding represents a new host record and the first report of N. surmenicola infection in T. pacificus squids from the east coast of Korea.
authors.affiliation: Department of Environmental Medical Biology and Institute for Clinical and Translational Research, Catholic Kwandong University College of Medicine, Gangneung 25601, Korea.
authors.forename: Joon Yup
authors.initials: JY
authors.lastname: Lee
authors.affiliation: Department of Environmental Medical Biology and Institute for Clinical and Translational Research, Catholic Kwandong University College of Medicine, Gangneung 25601, Korea.
authors.forename: Ji Woon
authors.initials: JW
authors.lastname: Kim
authors.affiliation: Department of Environmental Medical Biology and Institute for Clinical and Translational Research, Catholic Kwandong University College of Medicine, Gangneung 25601, Korea.
authors.forename: Gab Man
authors.initials: GM
authors.lastname: Park
mesh_terms: D000818:Animals; D002589:Cestoda / Q000302:isolation & purification*; D002590:Cestode Infections / Q000453:epidemiology* / Q000662:veterinary*; D049832:Decapodiformes / Q000469:parasitology*; D005393:Fish Diseases / Q000469:parasitology*; D056910:Republic of Korea / Q000453:epidemiology
keywords: Nybelinia surmenicola; Todarodes pacificus; new record; plerocercoid; squid