-
Right lateral view of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid to cylindrical. The posterior tapers to a short point. The fixation and staining process swells the cells. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx (not seen here). There is a girdle of longer cilia just posterior to the bare anterior snout. There are 22 widely spaced uniform longitudinal somatic kineties. This individual is in the middle stage of division. The equatorial band of closely spaced kintosomes will form the circumoral ciliary girdle of the posterior daughter cell (opisthe). The anterior halves of three dorsal kineties are made up of clavate (short club-shaped) cilia forming a dorsal brush (seen well in this view). The dorsal brush of the opisthe is seen well here. Collected from freshwater pond near Boise, Idaho August 2004. This specimen is stained by a silver carbonate technique (see Foissner, W.Europ. J. Protistol.27,313-330;1991). Brightfield optics.
-
Ventral view of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid to cylindrical. The posterior tapers to a short point. The fixation and staining process swells the cells. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx (not seen here). There is wreath of longer cilia just posterior to the bare anterior snout. There are 22 widely spaced uniform longitudinal somatic kineties. The anterior halves of three dorsal kineties are made up of clavate (short club-shaped) cilia forming a dorsal brush (not seen in this view).Collected from freshwater pond near Boise, Idaho August 2004. This specimen is stained by a silver carbonate technique (see Foissner, W.Europ. J. Protistol.27,313-330;1991). Brightfield optics.
-
Right lateral view of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid to cylindrical. The posterior tapers to a short point. The fixation and staining process swells the cells. The anterior end forms a blunt snout with an apical cytostome in the center of a bare area. Short trichites support the cytopharynx. A cluster of extrusomes (stained black here) protrudes from the cytostome. There is a girdle of longer cilia just posterior to the bare anterior snout. The closely packed kinetosomes of this circumoral ciliary girdle are angled obliquely to the long axis (seen well here). There are 22 widely spaced uniform longitudinal somatic kineties. The anterior halves of three dorsal kineties are made up of clavate (short club-shaped) cilia forming a dorsal brush (seen well in this view). Collected from freshwater pond near Boise, Idaho August 2004. This specimen is stained by a silver carbonate technique (see Foissner, W.Europ. J. Protistol.27,313-330;1991). Brightfield optics.
-
Anterior apical view of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid to cylindrical. The posterior tapers to a short point. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx. There is a girdle of longer cilia just posterior to the bare anterior snout. There is a girdle of longer cilia just posterior to the bare anterior snout. The closely packed kinetosomes of this circumoral ciliary girdle are angled obliquely to the long axis (seen well here). Radiating fibrils can be seen between the circumoral kineties and the cytostome. There are 22 widely spaced uniform longitudinal somatic kineties. The anterior halves of three dorsal kineties are made up of clavate (short club-shaped) cilia forming a dorsal brush (seen well in this view at 12 o'clock). Stained by the silver carbonate technic (see Foissner, W. Europ. J. Protistol.27, 313-330; 1991). Collected from a freshwater pond near Boise, Idaho. Brightfield.
-
Dorsal view of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid to cylindrical. The posterior tapers to a short point. The fixation and staining process swells the cells. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx (not seen here). There is a girdle of longer cilia just posterior to the bare anterior snout. There are 22 widely spaced uniform longitudinal somatic kineties. This individual is in the early stage of division. The equatorial band of closely spaced kintosomes will form the circumoral ciliary girdle of the posterior daughter cell (opisthe). The anterior halves of three dorsal kineties are made up of clavate (short club-shaped) cilia forming a dorsal brush (seen well in this view). Collected from freshwater pond near Boise, Idaho August 2004. This specimen is stained by a silver carbonate technique (see Foissner, W.Europ. J. Protistol.27,313-330;1991). Brightfield optics.
-
Portrait of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid. The posterior tapers to a short point. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx. There is wreath of longer cilia just posterior to the bare anterior snout. The uniform longitudinal somatic kineties are are widely spaced. Three anterior rows of clavate cilia form a dorsal brush (seen here on viewer's left anteriorly). The cytoplasm contains highly refractile crystaline inclusions. The spherical macronucleus is posterior. There is a single posterior terminal contractile vacuole. Collected from freshwater pond near Boise, Idaho May 2004. DIC optics.
-
Portrait of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid. The posterior tapers to a short point. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx. There is wreath of longer cilia just posterior to the bare anterior snout. The uniform longitudinal somatic kineties are are widely spaced. Three anterior rows of clavate cilia form a dorsal brush. The cytoplasm contains highly refractile crystaline inclusions. The spherical macronucleus is posterior. There is a single posterior terminal contractile vacuole. Collected from freshwater pond near Boise, Idaho May 2004. DIC optics.
-
Portrait of the haptorid ciliate, Acropisthium mutabile (Perty, 1852). The cell body is ovoid. The posterior tapers to a short point. The anterior end forms a blunt snout with an apical cytostome. Short trichites support the cytopharynx. There is wreath of longer cilia just posterior to the bare anterior snout. The uniform longitudinal somatic kineties are are widely spaced. Three anterior rows of clavate cilia form a dorsal brush. The cytoplasm contains highly refractile crystaline inclusions. The ellipsoid macronucleus is seen just anterior to the contractile vacuole. There is a single posterior terminal contractile vacuole. Collected from freshwater pond near Boise, Idaho February 2005. DIC optics.
-
Originally described as Dinophrya liberkuhnii (Butschli) a -- Anus cl -- Cilia cv -- Contractile vacuole ek -- Ectoplasm N -- Macronucleus ncl -- Micronucleus nk -- Food particle o -- Mouth nk -- Food particle p -- Pellicle st -- Cytopharyngeal basket W -- Ciliated ring
-
Originally described as Dinophrya lieberkuhnii (Butschli) Shown with the posterior extended to a tail-like appendage. a -- Anus cv -- Contractile vacuole ek -- Ectoplasm N -- Macronucleus nk -- Food particle st -- Cytopharyngeal basket W -- Ciliated ring
-
Originally described as Dinophrya lieberkuhnii (Butschli). Oral view. cl -- Cilia N -- Macronucleus nk -- Fppd particle 0 -- Mouth st -- Cytopharyngeal basket W -- Ciliated ring
