TY - JOUR
TI - Pseudodifflugia klarae nov. spec., Bereczkya minuta nov. gen. nov. spec. and Paramphitrema muelleri nov. spec.: Three New Filose Testate Amoebae from the Plankton of the River Danube
AU - Kiss, Áron Keve
AU - Török, Júlia Katalin
AU - Ács, Éva
AU - Kiss, Keve Tihamér
TI - Pseudodifflugia klarae nov. spec., Bereczkya minuta nov. gen. nov. spec. and Paramphitrema muelleri nov. spec.: Three New Filose Testate Amoebae from the Plankton of the River Danube
AB - Three new, minute testate amoeban species smaller than 15 μm, including one new genus, are described from the plankton of the River Danube (Hungary) using high resolution video micrography. Pseudodifflugia klarae nov. spec. is characterised by an oval/pyriform, rigid, slightly compressed, scarcely or densely agglutinated test with a length of 8–14 μm. Its aperture is irregular in outline and inconspicuous; the nucleus contains one nucleolus and a few bent rods in the nucleoplasm. Bereczkya nov. gen., an incertae sedis cercozoan, has a minute spherical cell enclosed in a thin, rigid, more or less agglutinated organic test that is filled entirely by the cytoplasm. Its test bears an irregular and inconspicuous aperture. A collar-like ectoplasmic rim is situated in the aperture, from which a pseudopodial stem with filopodia is erected. The nucleus is slightly irregular, without a central nucleolus, but it contains rod-shaped granules in the nucleoplasm. Bereczkya minuta nov. spec. (test length: 3.5–8 μm, the diameter of the ectoplasmic rim: 0.8–2.3 μm) has a spherical test with asymmetric swellings and depressions, agglutinated with refractile mineral and other flat or irregularly-shaped xenosomes that may sometimes be almost entirely absent. Paramphitrema muelleri nov. spec. has a tubular or lemon-like test (length: 13–17 μm), which tapers towards the rigid apertures. The test is rigid, agglutinated and ism circular in cross section. The nucleus is vesicular. Thin filopodia, as well as 1–2 thick, straight, unbranched, tubular pseudopodia are produced.
VL - 2009
IS - Volume 48, Issue 2
PY - 2009
SN - 0065-1583
C1 - 1689-0027
SP - 97
EP - 110
UR - https://ejournals.eu/en/journal/acta-protozoologica/article/pseudodifflugia-klarae-nov-spec-bereczkya-minuta-nov-gen-nov-spec-and-paramphitrema-muelleri-nov-spec-three-new-filose-testate-amoebae-from-the-plankton-of-the-river-danube
KW - testate amoebae
KW - river plankton
KW - Pseudodifflugia klarae
KW - Bereczkya
KW - Paramphitrema muelleri