Capillaria (Hepatocapillaria) cichlasomae sp. п., parasitic in the liver of the cichlid Cichlasoma urophthalmus (Günther) from a small freshwater lake ("aguada") Xpoc in Yucatan, Mexico, is described. The parasite is characterized mainly by its small body size (male 1.8 mm, female 4.5 mm), the structure of the stichosome (markedly short stichocytes in one row) and the male (the presence of a pair of small subventral postanal papillae) and female (anus distinctly subterminal) caudal ends, and by the size and structure of the spicule (spicule 0.068-0.085 mm long, with marked transverse grooves on surface) and eggs (size 0.053-0.058 x 0.023 mm, with protruding polar plugs). This is the second known Capillaria species from the liver of fish and the first one from the liver of a freshwater fish.
During the solar cycle minimum period, a period of a suddenly enhanced solar activity occurred in early February 198d. Two proton flares were observed during this period after a long period of a totally quiet solar activity (R = 0 on most days in the second half of December and in January). Other flares, various phenomena
accompanying proton flares, like type II and type IV radio bursts and a large Forbush deerease of cosmic ray intensity were observed as well as an extremely severe geomagnotic storm (Kp = 9) and strong disturbances in the Earth´s ionosphere (SIDs and ionospheric storm), Czechoslovak solar and geophysical observations for this period are presented and interpreted with the use of other observations. Special attention is given to the flares of February 4 (start 0732 and 1025 UT) and February 5 (start 0934 UT) because spectrohelioscopic observations from the Hurbanovo observatory are available for these events.
Jan Valenta. K článku jsou připojeny anotace oceněných autorů snímků, jmenovitě: Daniely Rapavé, Lucie Filipenské, Michaela Komma. and Obsahuje bibliografii