Summary:  Sixty‐two small animals suspected of fungal diseases were examined in the capital of Slovakia, Bratislava, during the years 1978 to 1985. The yeast‐like organism, Malassezia pachydermatis was cultivated from 11 cases. The change of the generic name Pityrosporum to Malassezia by Dutch taxonomists has prompted the present discussion of the historical development of the nomenclature of this species. Zusammenfassung:  In der Hauptstadt der Slowakei, Bratislava, wurden in den Jahren 1978–1985 62 mykoseverdächtige Kleintiere untersucht. In 11 Fallen wurde Malassezia pachydermatis kulturell nachgewiesen. Da 1984 holländische Taxonomen den Gattungsnamen Pityrosporum wieder in Malassezia umgewandelt haben, diskutieren wir die historische Entwicklung der taxonomischen Benennung dieser Art.

Mobile communication systems are undoubtedly an environmental source of electromagnetic radiation (EMR). Although the direct health effect of a cell phone to human is still elusive, the effect to unicellular organisms is rather apparent. The aim of this study was to examine the effects of EMR on development of bacterial biofilm. Microtitration plates with four strains of Staphylococcus aureus were exposed to electromagnetic field of frequencies 1-5 GHz, which are used in mobile phones. The results showed mostly the inhibition of the development biofilm activity at frequencies 1, 2 and 3 GHz, however the significant stimulation of biofilm development occurred at frequencies 4 and 5 GHz. Our observations demonstrate that EMR exposure produced modulation effects on bacterial biofilms, which are very important in commensal and pathogen bacteria.