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http://dx.doi.org/10.12651/JSR.2022.11.3.174

New record of two marine synchaetid rotifers (Monogononta: Synchaeta) from Korea  

Yang, Hee-Min (Department of Biological Sciences and Bioengineering, Inha University)
Min, Gi-Sik (Department of Biological Sciences and Bioengineering, Inha University)
Publication Information
Journal of Species Research / v.11, no.3, 2022 , pp. 174-179 More about this Journal
Abstract
In this study, we identified two marine synchaetid rotifers, Synchaeta grimpei Remane, 1929 and S. vorax Rousselet, 1902, in Korea, which are the first synchaetid rotifers collected from a marine environment in the country. Prior to this study, all six synchaetids recorded in Korea were collected from freshwater environments. The morphological characteristics of both species are consistent with those recorded in previous studies of each species. Synchaeta grimpei is distinguished from other synchaetid rotifers by its cone-shaped body, wide and flat apical field, indistinct auricles, and long foot with two separated small toes. The morphological characteristics of Korean S. vorax specimens were most similar to the original description of Rousselet (1902), with its slender and cylindrical trunk shape, strongly convex apical field, and short foot with two small, separated toes. The rami of the Korean S. vorax specimen contained one frontal hook and several distinct and large teeth. Here, we provide the morphological diagnoses of the two synchaetid rotifers and the sequences of the partial mitochondrial cytochrome c oxidase subunit I (COI) of the two species.
Keywords
COI; marine rotifers; SEM; Synchaeta grimpei; Synchaeta vorax; trophi;
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