New observations of the colpodid ciliate Ottowphrya dragescoi (Ciliophora, Colpodea, Platyophryida, Ottowphryidae) and its confusing taxonomic history

摘要

This paper describes a new population of Ottowphrya dragescoi isolated from moss samples in the UK. Its size in vivo is 70-110 x 35-60 μm. Its oral and somatic infraciliature were revealed with silver-carbonate impregnation, which showed 4-7 adoral organelles, and 27-34 somatic kineties. Thus far, three populations have been described in the scientific literature: one German, one from Austria and a Finnish population in addition to specimens from France, Australia and Kenya. The English population, described here, is quite similar to the one from Finland. Our data confirm the observations made byudFoissner (2002) and highlight the taxonomic difficulties in establishing new genera and species