image_list image_listE

Heterotrichea: Heterotrichida: Stentoridae

 Stentor polymorphus
(Müller 1773) Ehrenberg, 1830

Stentor polymorphus Species: Colorless; with symbiotic Chlorella; 1-2 mm long when extended; macronucleus beaded; anterior end expanded (Kudo, 1966). Elongate, may attain 1-2 mm; peristome wide; macronucleus moniliform; no somatic bristles; colourless but zoochlorellae may be present (Carey, 1992).
Cell body slenderly trumpet shaped, up to 2 mm long when fully extended; macronucleus moniliform (more than 10 connected beads); cortical granules colourless; with symbiotic green algae (Foissner and Wölfl, 1994).

Stentor polymorphus (Müller) Ehrenberg, a dividing cell, cell body 380 μm long, 50 μm wide, L/W=7.6, peristome 80 μm wide, x 200, x 400, x 640, Banpaku memorial park, Tsukuba city, Ibaraki Pref., Japan, January 24, 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Stentor polymorphus Stentor polymorphus Stentor polymorphus Stentor polymorphus
Cell body 300 μm long, 50 μm wide, L/W=6.0, peristome 80 μm wide, x 200, x 400, x 640
Stentor polymorphus Stentor polymorphus Stentor polymorphus Stentor polymorphus

Images of collecting locality: Banpaku memorial park, Tsukuba city, Ibaraki Pref., Japan, January 24, 2006 by Y. Tsukii

Please click on images for viewing enlarged.
Copyright Protist Information Server