Abstract
Cave research in Hungary has developed a lot in the last decade. As a part of this progress, enchytraeid specimens were collected from Hungarian caves and were subsequently characterized by comparative morphological and molecular taxonomic analyses. Molecular phylogenetic studies based on ITS, CO1 and H3 sequences and morphological results confirmed that these specimens represented two species new to science. The descriptions of Fridericia baradlana sp. nov. and Fridericia spelaeophila sp. nov. are presented in this paper.
Highlights
Aquatic oligochaetes living in the subterranean environment have been studied extensively and significant results have been published related to several aspects of their biology and ecology
Only few data are available on cave enchytraeids, and in most of these publications Hungarian cave habitats were characterized
In further research carried out under his supervision (Dózsa-Farkas 1970, Dózsa-Farkas 1974), this was succeeded by the detection of 13 enchytraeid species and by the description of four species new to science (Cernosvitoviella aggtelekiensis Dózsa-Farkas, 1970, Enchytronia christenseni Dózsa-Farkas, 1970, Fridericia reducata Dózsa-Farkas, 1974, and F. semisetosa Dózsa-Farkas, 1970)
Summary
Aquatic oligochaetes living in the subterranean environment have been studied extensively and significant results have been published related to several aspects of their biology and ecology (see the review of Creuzé des Châtelliers et al 2009). Outside Hungary, only Botea (1973, 1984) studied such environments, and he described seven new species from Romanian caves, but these novel species later proved to be nomen dubia (Schmelz 2003; Schmelz & Collado 2010). His material was lost, uncertainties exist regarding the published data. Subsequent studies have confirmed that these species (including the newly described ones) cannot be considered troglobionts, since they were later found in various aboveground habitats (Dózsa-Farkas 2019)
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