Description
Prominent , anterior, thigmotactic sucker; may have segments of anterior kineties in unciliated area; oral infraciliature reduced and at posterior with 0Pk2, two kinetosomes wide, in two segments Fig . 70. Koz with a peristomal segment around the posterior B. Anterior s pole and an infundibular segment; symbionts in Ngassam , Gra oligochaetes and molluscs ; 15 genera. Note. Hysterocinetids and paraptychostomids share some features with astomes, supporting Division by placement of the Subclasses Scuticociliatia and symbionts of Astomatia in the same Class: an anterior sucker- like organelle occurs in these two families and also Genus Raabel in haptophryid astomes; and division by chain- formation occurs in hysterocinetids (e.g ., Kozloffia, Fig . 70) and some astomes (e .g., Family Sucker with 6 Haptophryidae; Family Radiophryidae,) . thigmotactic 71 ) . ntative Genera in the Family y binary fission ...................... .. .. .. ..... 2 by catenulation or chain formation .... .................................................... Kozloffia th 6-7 somatic kineties extending into ctic field .. .. ..... ..... .... .. Raabe/locineta ith small kinetal fragments in the ctic field ..... ........ ...... ... ...... .... .... .. .. ... ... 3 h > 10 small kinetal fragments ... ....... . . . . . .. . . . . .. . .. . .. . . . . .. . . . . . . . .. . .... . . . . .. . . Hysterocineta th < 5 small kinetal fragments .. ......... .. ...... ... .. ... ... ... ....... ..... ...... ... Ptychostomum loffia catenula . A. Division by catenulation ; ucker; C. Detail of oral ciliature . From in and Njine , 1997.
Type species
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Raw text
Prominent , anterior, thigmotactic sucker; may have segments of anterior kineties in unciliated area; oral infraciliature reduced and at posterior with 0Pk2, two kinetosomes wide, in two segments Fig . 70. Koz with a peristomal segment around the posterior B. Anterior s pole and an infundibular segment; symbionts in Ngassam , Gra oligochaetes and molluscs ; 15 genera. Note. Hysterocinetids and paraptychostomids share some features with astomes, supporting Division by placement of the Subclasses Scuticociliatia and symbionts of Astomatia in the same Class: an anterior sucker- like organelle occurs in these two families and also Genus Raabel in haptophryid astomes; and division by chain- formation occurs in hysterocinetids (e.g ., Kozloffia, Fig . 70) and some astomes (e .g., Family Sucker with 6 Haptophryidae; Family Radiophryidae,) . thigmotactic 71 ) . ntative Genera in the Family y binary fission ...................... .. .. .. ..... 2 by catenulation or chain formation .... .................................................... Kozloffia th 6-7 somatic kineties extending into ctic field .. .. ..... ..... .... .. Raabe/locineta ith small kinetal fragments in the ctic field ..... ........ ...... ... ...... .... .... .. .. ... ... 3 h > 10 small kinetal fragments ... ....... . . . . . .. . . . . .. . .. . .. . . . . .. . . . . . . . .. . .... . . . . .. . . Hysterocineta th < 5 small kinetal fragments .. ......... .. ...... ... .. ... ... ... ....... ..... ...... ... Ptychostomum loffia catenula . A. Division by catenulation ; ucker; C. Detail of oral ciliature . From in and Njine , 1997.