Description
Faure-Fremiet in Corliss , 1956 Paroral dikinetid with long cilia, forming curtain (velum) as organism feeds ; ribbed wall conspicuous; cytostome in anterior 3/4 of body; 9 families. Lor bel b y <9 6? Wit 1. Sessile; in a lorica .. .... .. .... .. ..... Calyptorichidae 1'. Not sessile nor sedentary ; not in lorica .. .... ....... 2 2. Paroral cilia as well-developed velum (visible in life when feeding ; rarely when fixed , Vel stained); paroral kinetosomes forming a "C"- ope shape .. ... ........ ... ... ... ......... ... ....... ........ ... .... . .. .... ...3 ora 2' . Paroral velum not obvious ; typically symbionts of molluscs ..... ......... ... ........ ...... ..... .... .. .... ..... .. ... 8 3. Paroral dikinetid an open "C"-shape ; at least 0Pk3 at right angle to long axis of oral area ... ...... ... .... ...................... .. Ctedoctematidae 1. 3' . Paroral dikinetid looping posteriorly then anteriorly and to left of cytostome ... ..... ....... .. ...4 p COCI LIATIA Oral polykinetids only on anterior 1/3 to 1/2 of oral area, and oblique to long axis of oral area .. . ............ ..... ... ...... ... ... ..... ...... Histiobalantiidae Oral polykinetids not as above .. ... ..... .. .. ........ .. .... 5 Part of 0Pk2, V-shaped, may not be conspicuous; curve of velum at posterior to cytostome, large , conspicuous on stationary, live organisms ... .... 6 No V-shaped oral polykinetid ; curve of velum not as above .. ........ .. .... .. .... .... ... ... .. ..... ...... .. ... ..... .7 Anterior of long , linear, 0Pk2 with > 2 files of kinetosomes ....... ..... .. . .. ... Peniculistomatidae . Anterior of long , linear, 0Pk2 with no more than 2 files, usually zig -zag kinetosomes .... ... ... . .. .... ..... ... ... ... .... ... ... .. ..... .. .... .. Pleuronematidae Several close-set thigmotactic kineties along right-ventral anterior and lateral margin of body; 1 long , broad oral polykinetid curving close to inside of paroral dikinetid .. ...... ... ..... ..... . . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. Dragescoidae . Thigmotactic kineties and oral apparatus not as above ....... ... ... .... ...... ... ..... .. .. .... .. ... Cyclidiidae Relatively large, thigmotactic; endosymbionts of molluscs ....... ........ .... ... .... ... Conchophthiridae . Small, thigmotactic; endosymbionts of renal system of terrestrial gastropods .... ...... .... .... ..... .. .... ... ... ... .. ... ....... .... .. .... ............. Thigmocomidae
Type species
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Faure-Fremiet in Corliss , 1956 Paroral dikinetid with long cilia, forming curtain (velum) as organism feeds ; ribbed wall conspicuous; cytostome in anterior 3/4 of body; 9 families. Lor bel b y <9 6? Wit 1. Sessile; in a lorica .. .... .. .... .. ..... Calyptorichidae 1'. Not sessile nor sedentary ; not in lorica .. .... ....... 2 2. Paroral cilia as well-developed velum (visible in life when feeding ; rarely when fixed , Vel stained); paroral kinetosomes forming a "C"- ope shape .. ... ........ ... ... ... ......... ... ....... ........ ... .... . .. .... ...3 ora 2' . Paroral velum not obvious ; typically symbionts of molluscs ..... ......... ... ........ ...... ..... .... .. .... ..... .. ... 8 3. Paroral dikinetid an open "C"-shape ; at least 0Pk3 at right angle to long axis of oral area ... ...... ... .... ...................... .. Ctedoctematidae 1. 3' . Paroral dikinetid looping posteriorly then anteriorly and to left of cytostome ... ..... ....... .. ...4 p COCI LIATIA Oral polykinetids only on anterior 1/3 to 1/2 of oral area, and oblique to long axis of oral area .. . ............ ..... ... ...... ... ... ..... ...... Histiobalantiidae Oral polykinetids not as above .. ... ..... .. .. ........ .. .... 5 Part of 0Pk2, V-shaped, may not be conspicuous; curve of velum at posterior to cytostome, large , conspicuous on stationary, live organisms ... .... 6 No V-shaped oral polykinetid ; curve of velum not as above .. ........ .. .... .. .... .... ... ... .. ..... ...... .. ... ..... .7 Anterior of long , linear, 0Pk2 with > 2 files of kinetosomes ....... ..... .. . .. ... Peniculistomatidae . Anterior of long , linear, 0Pk2 with no more than 2 files, usually zig -zag kinetosomes .... ... ... . .. .... ..... ... ... ... .... ... ... .. ..... .. .... .. Pleuronematidae Several close-set thigmotactic kineties along right-ventral anterior and lateral margin of body; 1 long , broad oral polykinetid curving close to inside of paroral dikinetid .. ...... ... ..... ..... . . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. Dragescoidae . Thigmotactic kineties and oral apparatus not as above ....... ... ... .... ...... ... ..... .. .. .... .. ... Cyclidiidae Relatively large, thigmotactic; endosymbionts of molluscs ....... ........ .... ... .... ... Conchophthiridae . Small, thigmotactic; endosymbionts of renal system of terrestrial gastropods .... ...... .... .... ..... .. .... ... ... ... .. ... ....... .... .. .... ............. Thigmocomidae