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"They are trumpet-animalcules of the family Stentoridae, with the peristome divided into two lappet-like parts. Folliculina ampulla is an example." -Whitney, 1911

Trumpet Animalcule

"They are trumpet-animalcules of the family Stentoridae, with the peristome divided into two lappet-like…

Modes of cell reproduction. A, B, and C, stages in the reproduction of the Infusorian, Colpoda, by the breaking up of the protoplasm to form numerous cells. A, encysted stage; B, protoplasm escaping, spores partly formed; C, spores completely separated; D, budding in Chlamydomyxa, a lowly Rhizopod. b, bud; cw., cell wall; m, mother cell; n, nuclear matter; s, spores.

Cell Reproduction

Modes of cell reproduction. A, B, and C, stages in the reproduction of the Infusorian, Colpoda, by the…

"A colony of Cercomonas termo, a typical flagellate infusorian." -Whitney, 1911

Cercomonad Flagellate

"A colony of Cercomonas termo, a typical flagellate infusorian." -Whitney, 1911

"A colonial flagellate Infusorian--Proterospongia haeckelii. There are about 40 flagellate individuals. a, nucleus; b, contractile vacuole; c, amoeboid unit in gelatinous matrix; d, division of an amoeboid unit; e, flagellate units with collars contracted; f, hyaline outer membranes; g, unit forming spores." -Thomson, 1916

Infusorian

"A colonial flagellate Infusorian--Proterospongia haeckelii. There are about 40 flagellate individuals.…

"A, Vorticella, a stalked ciliate Infusorian; I, contracted; 2, extended. f, food "vacuoles"; g, gullet; m, contractile fibre (muscular); n, nucleus; o, mouth, surrounded by ciliated disc; p.v., pulsating vacuole; s, stalk. B, a colonial type similar to Vorticella." -Galloway, 1915

Vorticella

"A, Vorticella, a stalked ciliate Infusorian; I, contracted; 2, extended. f, food "vacuoles"; g, gullet;…