Description
Series of transverse rows of monokinetids on left side of oral region; on right side, an inner single file of monokinetids and an outer file of at least dikinetids (Fig. 12} . Dragesco and Dragesco-Kerneis , 1991) : \~(·:-::· !;) !;) ~: :',' ,I : • ; '(11'/. · •. ' •, ,: ..... ~-:::::;:;.:_..., 1 :7#1~~\:·. '; ".of) ~ I • ., . i:$~~ ',. ·,>' . ~·,·. ··. !:. :~\,~~.; ,'' ',' ~--~\\\• ' ' .... •..--!! ··~i\\:> ,/ ,/ A B ·. Dragesco and Dragesco-Kerneis, 1996} CLASS HETEROTRICHEA Stein, 1859 Body form varies (from compressed to conical , often elongate and contractile ; somatic kineties , when present , as dikinetids, with overlapping postciliary microtubular ribbons; left serial oral polykinetids conspicuous , extending anteriorly to almost encircle anterior end ; macronucleus divided by extra-macronuclear microtubules ; some species are temporarily or permanently sessile ; two orders. b 9 <9 t;? 1 . Hour-glass-shaped ; ectosymbionts , temporarily attached to substrate or host by ciliated , mobile, aboral , adhesive disc ; specialized somatic cilia , only on adhesive disc ...... ..... .. .. .. ... ........... .. .... ....... ... .. ... Licnophorida 1' . Somatic kineties usually insert on oral region ; no sutures ; many contractile species ; body may be laterally compressed (e.g ., Blepharismidae ) .... ......... ... ............ ...... .. ........ .. .. Heterotrichida
Type species
Figures
Raw text
Series of transverse rows of monokinetids on left side of oral region; on right side, an inner single file of monokinetids and an outer file of at least dikinetids (Fig. 12} . Dragesco and Dragesco-Kerneis , 1991) : \~(·:-::· !;) !;) ~: :',' ,I : • ; '(11'/. · •. ' •, ,: ..... ~-:::::;:;.:_..., 1 :7#1~~\:·. '; ".of) ~ I • ., . i:$~~ ',. ·,>' . ~·,·. ··. !:. :~\,~~.; ,'' ',' ~--~\\\• ' ' .... •..--!! ··~i\\:> ,/ ,/ A B ·. Dragesco and Dragesco-Kerneis, 1996} CLASS HETEROTRICHEA Stein, 1859 Body form varies (from compressed to conical , often elongate and contractile ; somatic kineties , when present , as dikinetids, with overlapping postciliary microtubular ribbons; left serial oral polykinetids conspicuous , extending anteriorly to almost encircle anterior end ; macronucleus divided by extra-macronuclear microtubules ; some species are temporarily or permanently sessile ; two orders. b 9 <9 t;? 1 . Hour-glass-shaped ; ectosymbionts , temporarily attached to substrate or host by ciliated , mobile, aboral , adhesive disc ; specialized somatic cilia , only on adhesive disc ...... ..... .. .. .. ... ........... .. .... ....... ... .. ... Licnophorida 1' . Somatic kineties usually insert on oral region ; no sutures ; many contractile species ; body may be laterally compressed (e.g ., Blepharismidae ) .... ......... ... ............ ...... .. ........ .. .. Heterotrichida