The formerly monotypic genus Blissia is given a wider definition, in order to include a second new species, Blissia robusta, from the Ogilvie Mts, Yukon Territory, northwestern Canada. Some additional characters separating the genera Blissia and Tetracanthella are described.
The morphology of two Salvelinema Trofimenko, 1962 species, S. salmonicola (Ishii, 1916) and S. walkeri (F.kbaum, 1935), swimbladder nematodes of salmonids, was studied in detail, including scanning electron microscopy (SEM), on the basis of newly collected materials from Oncorhynchus masou, О. mykiss and Salvelinus malma from Japan and from Oncorhynchus ciarki, О. kisulch and O. nerka from North America (Vancouver Island, B.C., Canada and Gulf of Alaska). Both nematode species proved to be morphologically very similar, differing substantially in the numbers and arrangements of egg filaments. Deirids were described for the first time for Salvelinema. Salvelinema iwana (Fujita, 1928), S. amemasu (Fujita, 1939), S. kosugii (Fujita, 1939), S. oncorhynchi (Fujita, 1939) and S. salvelini (Fujita, 1939) (= S. ishii (Fujita, 1941)) were synonymised with S. salmonicola. Comephoronema Layman, 1933 is re-erected as a valid genus related to Salvelinema.
Trichodina kamchatika Konovalov, Shevlyakov et Krasin, 1970 is redescribed based on specimens obtained from the gills and body surface of brook trout (Salvelinus fontinalis) from Nova Scotia and Quebec, Canada and its taxonomic history briefly reviewed. This is the first report of T. kamchatika from North America.
The paper deals with the English-speaking community in
Czechoslovakia in the 1950s. It attempts to illustrate that although international communism was supposed to cross national boundaries, it was not always the case in reality. There were invisible boundaries – mental, language, cultural, ethnic and racial – that proved to be difficult to overcome for both the guests and their hosts. The paper concentrates on questions such as the role of Czechoslovakia and Prague in the international communist movement, anti- Western propaganda, political asylum, housing and job related issues the English-speakers had to face, family questions, language issues and free time activities. and Článek zahrnuje poznámkový aparát pod čarou