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Heterotrichea: Heterotrichida: Stentoridae

 Stentor roeseli
Ehrenberg 1835

Stentor roeseli pyriformisSpecies: 0.5-1 mm long; anterior end expanded; body surface with groups of longer cilia; posterior portion drawn out and often within a gelatinous tube (lorica); macronucleus long band-form (Kudo, 1966). Body attenuated, peristome widely expanded, attains 0.5-1.0 mm; peristome has no central raised dome; somatic bristles present; gelatinous lorica; macronucleus moniliform but usually observed as a long rod; colourless (Carey, 1992).

Stentor roeseli Ehrenberg, cell body 400 μm long, 100 μm wide, L/W=4.0, x 100, x 200, x 400, x 640, a pond near Dedono-yu (hot spring), prefectural road route 215, Nishiwaga-machi (town), Iwate Pref., Japan, May 4, 2007 by Y. Tsukii
scale scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Stentor roeseli Stentor roeseli Stentor roeseli Stentor roeseli
x 640
Stentor roeseli Stentor roeseli Stentor roeseli

Images of collecting locality: a pond near Dedono-yu (hot spring), prefectural road route 215, Nishiwaga-machi (town), Iwate Pref., Japan, May 4, 2007 by Y. Tsukii

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