Protistology 1 (2) 66–71 (1999)
Description of Cochliopodium larifeili n. sp. (Lobosea, Himatismenida), an amoeba with peculiar
scale structure, and notes on the diagnosis of the genus Cochliopodium (Hertwig and Lesser, 1874) Bark, 1973
Alexander A. Kudryavtsev
Department of Invertebrate Zoology, Faculty of Biology and Soil Science, St. Petersburg State University, Russia
Summary
Cochliopodium larifeili n. sp., was isolated from bottom sediments of a freshwater lake at the Valamo
Archipelago (Lake Ladoga) and studied using both light and electron-microscopical methods. Tectum of this species is composed of
cubical scales which differ in general pattern of organization from those, characteristic for other electron-microscopically studied members
of the genus. A scale consists of a quadrangular base plate with honeycomb-like appearance, four vertical columns arising from the corners
of the base plate and an arc-shaped quadrangular top part. These data necessitate some corrections in the current diagnosis of the
genus Cochliopodium created by Bark (1973) which included the description of scale structure.
Key words: amoebae, systematics, Lobosea, Himatismenida, Cochliopodium, tectum
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