Description
Mature trophont usually sessile, attached by scapula that may produce a stalk; may be attached to other organisms ; no denticular ring; many species gregarious or colonial ; bacterivorous or microalgivorous filter-feeders; 14 families . 1. Mature trophont free-swimming .. .... ...... ... .. ...... 2 1'. Mature trophont sessile, sedentary .. .... .. ........ .. .4 2. Oral cavity sunken with elongate , deep infundibulum in which oral ciliature makes five helical turns; endosymbionts of termites of the Subfamily Apicotermitinae, Family .............. .... ..... .... ....... .. ... ..... Termitophryidae 2' . Oral cavity not as above; free-living ...... ........... 3 3. With rigid aboral bristles or short caudal c iIi a; no telotrochal band .... .. .. ... .. .... ... ...Astylozoidae 3' . With oral bristles (or their kinetosomes) and telotrochal band .... ........ .. .... ... .Opisthonectidae 4. Body elongate , contractile; if stalked, stalk non- contractile .... ....... ... ........ .. ...... .. .. .. ... ..... ............. 5 4' . Body otherwise ...... ...... ...... ...... ..... .. .. ....... .... .... .. 6 5. Aloricate ; if colonial, zooids in gelatinous matrix ..... .... ... .... .... .. .. .. .... ........ .....Ophrydiidae 5 ·. Loricate ; zooid attached to lorica by aboral end .. ..... .. .... ....... ..... ... .......... ........ ........ Vaginicolidae 6. Attached to gill-filaments of host by aboral arms that encircle filament , joined as a ring .. .... .. ... ... ... .... ..... .... .... .. .. ....... ........ EIIobiophryidae 6' . No such arms ............... .. ....... .......... .... ................ ? 7. Zooid in lorica with restricted aperture .......... .8 7' . If loricate, lorica much expanded , cup-like .. .... 9 8. Lorica aperture closed by lip-like folds or f I a p- like operculum ; telotroch forming to left side of parent (when viewed (from above) ...... .......... ...... . ... ..... ................. ........ .... .. ..... .. .. Lagenoph ryidae 8' . Lorica aperture without closure apparatus ; telotroch forming to right side of parent (when viewed (from above) .. .... ...... . Usconophryidae 9. With contractile stalk ; solitary or colonial .... 10 9' . Stalk not contractile , when present; solitary or colonial ...... ..... .............................. ......... .. .... .. .. 12 10. Zooids colonial , share contractile stalk; in cup-like lorica that attaches to substrate by non-contractile part of stalk .... .Rovinjellidae 10. If loricate, zoo ids do not share contractile stalk .... ...... ...... .. ....................................................... 11 11 . Each zooid independently contractile; if solitary , entire stalk of each zooid contractile ...... .. ... ......... ... ... . .. .. .. Vorticellidae 11'. Entire colony contractile .... ... Zoothamniidae 12. Peristomal disc on stalk, having a furrow that separates and elevates disc (from margin of zooid .................... .. .................. Operculariidae 12'. Peristomal disc not stalked , lacking such a furrow ....... .... .. ... ............. ...... ... ... ........ .. .. .... .. . 13 620 CILIOPHORA, PERIT 13. No stalk, but may have aboral end drawn out , resembling stalk .... .. .. ...... .. ......... Scyphidiidae 13. With stalk, which may be extremely difficult to resolve (e.g., Apiosoma) ; solitary or colonial ... .. .. ... ... ..... ... .. ....... .... ..... ... .. ...... .. .. Epi
Type species
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Raw text
Mature trophont usually sessile, attached by scapula that may produce a stalk; may be attached to other organisms ; no denticular ring; many species gregarious or colonial ; bacterivorous or microalgivorous filter-feeders; 14 families . 1. Mature trophont free-swimming .. .... ...... ... .. ...... 2 1'. Mature trophont sessile, sedentary .. .... .. ........ .. .4 2. Oral cavity sunken with elongate , deep infundibulum in which oral ciliature makes five helical turns; endosymbionts of termites of the Subfamily Apicotermitinae, Family .............. .... ..... .... ....... .. ... ..... Termitophryidae 2' . Oral cavity not as above; free-living ...... ........... 3 3. With rigid aboral bristles or short caudal c iIi a; no telotrochal band .... .. .. ... .. .... ... ...Astylozoidae 3' . With oral bristles (or their kinetosomes) and telotrochal band .... ........ .. .... ... .Opisthonectidae 4. Body elongate , contractile; if stalked, stalk non- contractile .... ....... ... ........ .. ...... .. .. .. ... ..... ............. 5 4' . Body otherwise ...... ...... ...... ...... ..... .. .. ....... .... .... .. 6 5. Aloricate ; if colonial, zooids in gelatinous matrix ..... .... ... .... .... .. .. .. .... ........ .....Ophrydiidae 5 ·. Loricate ; zooid attached to lorica by aboral end .. ..... .. .... ....... ..... ... .......... ........ ........ Vaginicolidae 6. Attached to gill-filaments of host by aboral arms that encircle filament , joined as a ring .. .... .. ... ... ... .... ..... .... .... .. .. ....... ........ EIIobiophryidae 6' . No such arms ............... .. ....... .......... .... ................ ? 7. Zooid in lorica with restricted aperture .......... .8 7' . If loricate, lorica much expanded , cup-like .. .... 9 8. Lorica aperture closed by lip-like folds or f I a p- like operculum ; telotroch forming to left side of parent (when viewed (from above) ...... .......... ...... . ... ..... ................. ........ .... .. ..... .. .. Lagenoph ryidae 8' . Lorica aperture without closure apparatus ; telotroch forming to right side of parent (when viewed (from above) .. .... ...... . Usconophryidae 9. With contractile stalk ; solitary or colonial .... 10 9' . Stalk not contractile , when present; solitary or colonial ...... ..... .............................. ......... .. .... .. .. 12 10. Zooids colonial , share contractile stalk; in cup-like lorica that attaches to substrate by non-contractile part of stalk .... .Rovinjellidae 10. If loricate, zoo ids do not share contractile stalk .... ...... ...... .. ....................................................... 11 11 . Each zooid independently contractile; if solitary , entire stalk of each zooid contractile ...... .. ... ......... ... ... . .. .. .. Vorticellidae 11'. Entire colony contractile .... ... Zoothamniidae 12. Peristomal disc on stalk, having a furrow that separates and elevates disc (from margin of zooid .................... .. .................. Operculariidae 12'. Peristomal disc not stalked , lacking such a furrow ....... .... .. ... ............. ...... ... ... ........ .. .. .... .. . 13 620 CILIOPHORA, PERIT 13. No stalk, but may have aboral end drawn out , resembling stalk .... .. .. ...... .. ......... Scyphidiidae 13. With stalk, which may be extremely difficult to resolve (e.g., Apiosoma) ; solitary or colonial ... .. .. ... ... ..... ... .. ....... .... ..... ... .. ...... .. .. Epi