Turaniellidae

Silverline system of Colpidium kleini (FOISSNER, 1969).There is a single secondary meridian (SM) between each pair of primary meridians (PM).This feature distinguishes C. kleini from the larger C. colpoda whose silverline system shows two secondary meridians between pairs of primary meridians.Stained by the dry silver nitrate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Colpidium (coll-pid-ee-um) is an oligohymenophoran ciliate, very closely related to Tetrahymena. The mouth is located near the front end, it is recessed, and the body is slightly twisted in front of the mouth. Eats bacteria and often found in organically enriched sites with little available oxygen. Phase contrast.

Colpidium (coll-pid-ee-um) is an oligohymenophoran ciliate, very closely related to Tetrahymena. The mouth is located near the front end, it is recessed, and the body is slightly twisted in front of the mouth. This detail shows the kineties at an angle anterior to the mouth. Eats bacteria and often found in organically enriched sites with little available oxygen. Phase contrast.

An early stage of stomatogenesis in Colpidium colpoda (LOSANA,1829) STEIN,1860.Stomatogenesis is of the monoparakinetal type. The stomatogenic field (SF) is seen to the left of the midportion of K1, the stomatogenic kinety (SK).From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Late stage of stomatogenesis in Colpidium colpoda (LOSANA,1829) STEIN,1860.Stomatogenesis is of the monoparakinetal type. The adoral organelles and paraoral membranelles of the opisthe (OAO)have developed from a stomatogenic field adjacent to the stomatogenic kinety in the mid-ventral portion of the cell.OAP=oral apparatus of the proter or parental cell.From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Dorsal infraciliature of Colpidium colpoda (LOSANA,1829) STEIN,1860.The green arrowheads mark the oblique furrow that extends from the oral aperture accross the right side of the cell to the center of the dorsal surface.The somatic kineties are more closely spaced and bend strongly to the left in this depression.In the living cell this area appears as a more densely ciliated region on the right. From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Right lateral view of the infraciliature of Colpidium colpoda (LOSANA,1829) STEIN,1860.The green arrowheads mark the oblique furrow that extends from the oral aperture accross the right side of the cell to the center of the dorsal surface.The somatic kineties are more closely spaced and bend strongly to the left in this depression.In the living cell this area appears as a more densely ciliated region on the right.The single pore of the contractile vacuole (yellow arrowhead) is located on the right dorsolateral surface. From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Ventral infraciliature of Colpidium colpoda (LOSANA,1829) STEIN,1860. From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Silverline system of Colpidium colpoda (LOSANA,1829) STEIN,1860.2 secondary meridians (SM) run between pairs of primary meridians (PM). This pattern occurs sporadically in the same cell with some areas showing a single branched secondary meridian between pairs of primary meridians (similar to the pattern in C. kleini). From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the dry silver nitrate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Right lateral view of the infraciliature of Colpidium colpoda (LOSANA,1829) STEIN,1860.The green arrowheads mark the oblique furrow that extends from the oral aperture accross the right side of the cell to the center of the dorsal surface.The somatic kineties are more closely spaced and bend strongly to the left in this depression.In the living cell this area appears as a more densely ciliated region on the right.The single pore of the contractile vacuole (yellow arrowhead) is located on the right dorsolateral surface. From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. DIC.

in vivo portrait (ventral view) of Colpidium colpoda (LOSANA,1829) STEIN,1860.From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. DIC.

Silverline system of Colpidium colpoda (LOSANA,1829) STEIN,1860.2 secondary meridians run between pairs of primary meridians. This pattern occurs sporadically in the same cell with some areas showing a single branched secondary meridian between pairs of primary meridians (similar to the pattern in C. kleini). From a putrefying raw culture from a freshwater pond near Boise, Idaho.October 2007. Stained by the dry silver nitrate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.

Key to Schewiakoff's abbrevations:  a -- Anus al -- Pellicular alveoli cv -- Contractile vacuole l.or -- Left edge of mouth m -- Undulating membrane ni -- Inner undulating membrane N -- Macronucleus ncl -- Micronucleus o -- Mouth nv -- Food vacuole r.or --Right edge of mouth

a -- Anus Key to Schewiakoff's abbreviations:  al -- Pellicular alveoli cv -- Contractile vacuole m -- Undulating membrane mi -- Inner undulating membrane N -- Macronucleus ncl -- Micronuclues nv -- Food vacuole o -- Mouth oe -- Throat p -- Pellicle r.mr -- Right edge of mouth

Dorsal view.

Described by Ehrenberg under the name Paramecium kolpoda.

Originally described by Ehrenberg under the name Paramecium colpoda.