title: An emended description of Amphidiniopsis arenaria Hoppenrath 2000, based on material from the Sea of Japan.
abstract: Cells of a taxon similar to the type species of Amphidiniopsis, Amphidiniopsis kofoidii, were found during the course of a study of marine sand-dwelling dinoflagellates in Peter the Great Bay, Sea of Japan, Russia. These specimens were examined in detail using light and scanning electron microscopy and were identified as Amphidiniopsis arenaria, a species known so far only from the North Sea, Germany. Morphological variability within the species and details of its sulcal construction are described here for the first time.
authors.affiliation: Institute of Marine Biology, Far Eastern Branch, Russian Academy of Science, Palshevskogo str. 17, Vladivostok 690041, Russia.
authors.forename: Marina
authors.initials: M
authors.lastname: Selina
authors.forename: Mona
authors.initials: M
authors.lastname: Hoppenrath
mesh_terms: D000818:Animals; D004141:Dinoflagellida / Q000145:classification* / Q000302:isolation & purification / Q000648:ultrastructure*; D008855:Microscopy, Electron, Scanning; D009792:Oceans and Seas; D012426:Russia; D012623:Seawater / Q000469:parasitology*; D013045:Species Specificity