title: New species of Paramoebidium (trichomycetes, Mesomycetozoea) from the Mediterranean, with comments about the amoeboid cells in Amoebidiales.
abstract: Paramoebidium, along with Amoebidium, constitute the order Amoebidiales, traditionally included in the ecological group trichomycetes and conventionally studied by mycologists, although they are phylogenetically embedded in the protist clade Mesomycetozoean (Ichthyosporea). The genus Paramoebidium has 13 accepted species, all associated with immature stages of aquatic insects. Three new species of Paramoebidium, P. angulatum, P. avitruviense and P. ecdyonuridaei, are described here, associated with either Plecoptera and Ephemeroptera nymphs. During routine observations of the amoeboid phases, uroidal adhesive filaments at the posterior end of the amoebae were noted and photographed, this being a novel observation for the Amoebidiales. This and other features are illustrated for all taxa.
authors.affiliation: Dept. Biologia Animal, Biol. Vegetal i Ecologia, Fac. Biociències, Universitat Auto`noma de Barcelona, 08193-Bellaterra (Barcelona), Spain laia.guardia@uab.cat.
authors.forename: Laia Guàrdia
authors.initials: LG
authors.lastname: Valle
mesh_terms: D000818:Animals; D005658:Fungi / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D007313:Insecta / Q000382:microbiology*; D019083:Mediterranean Region; D008969:Molecular Sequence Data; D010802:Phylogeny
keywords: Amoebidiales; DRIPs; Ichthyosporea; gut symbionts; mayflies; stoneflies