DAO 55:59-63 (2003)  -  doi:10.3354/dao055059

Light- and electron-microscope description of Kudoa paralichthys n. sp. (Myxozoa, Myxosporea) from the brain of cultured olive flounder Paralichthys olivaceus in Korea

Jae Bum Cho, Ki Hong Kim*

Department of Aquatic Life Medicine, Pukyong National University, Pusan 608-737, South Korea
*Corresponding author. Email:

ABSTRACT: A new Myxosporea, Kudoa paralichthys n. sp., is described from the brain of cultured olive flounder Paralichthys olivaceus in South Korea. Mature spores were quadrate in apical view, measuring 5.19 ± 0.54 µm in length, 8.23 ± 0.50 µm in width, and 6.87 ± 0.45 µm in thickness. Four valves were equal in size, each with 1 polar capsule. Polar capsules were pyriform in shape, measuring 2.2 ± 0.22 µm in length and 1.2 ± 0.14 µm in breadth. The sporoplasm consisted of a larger outer cell completely surrounding a smaller inner one, and had cytoplasmic projections. The junctions of shell valves were L-shaped. The sutural planes converged at the anterior ends of the spores and were associated with 4 small apex prominences in the central meeting point of the spores.


KEY WORDS: Myxosporea · Kudoa paralichthys n. sp. · Brain tissue · Olive flounder


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