Description
Right marginal Cirri as file of separated cirri begun some distance behind oral area; anterior-left marginal cirri, few ; mid-frontal cirri not forming obvious file (Fig . 8) . From Wicklow , 1982 CILIOPHORA, HYPOTRICHIA SUBORDER EUPLOTINA SMALL AND LYNN , 1985 Shape ovoid to ovorectangular ; right marginal cirri, absent ; left marginal cirri when present not as two distinct groups ; five families . b 9 t;? 1. Paroral of 2 monokinetid fil es around oral cavity from right rear to anterior left ; polykinetids of lape l and collar separated, the latter anteriodorsal. .............. . ........ ... . Uronychiidae 1'. Not as above ..... ........ ... .... .. .... ..... ... ...... ..... ........ 2 2. Flattened , disc-shaped body ; strongly thigmotactic ..... .......... ........ .... .... Aspidiscidae 2'. Pa roral and endoral ciliature present ; body shape not strongly flattened ....... ............ ........ 3 3. Many more than three left marginal cirri , typically eight ......... .. .... ...... .... ..... Certesiidae 3'. Three or fewer left marginal cirri ..... ...... .... .. .4 4. Relatively wide , anteriorly-opened oral cavity ; body nearly round in cross-section ... ....... .. . ....................... ..... ................. Gastrocirrhidae 4'. Ventrally-oriented oral cavity ; body mo re dorso-vent rally compressed .... .... . Euplotidae
Type species
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Right marginal Cirri as file of separated cirri begun some distance behind oral area; anterior-left marginal cirri, few ; mid-frontal cirri not forming obvious file (Fig . 8) . From Wicklow , 1982 CILIOPHORA, HYPOTRICHIA SUBORDER EUPLOTINA SMALL AND LYNN , 1985 Shape ovoid to ovorectangular ; right marginal cirri, absent ; left marginal cirri when present not as two distinct groups ; five families . b 9 t;? 1. Paroral of 2 monokinetid fil es around oral cavity from right rear to anterior left ; polykinetids of lape l and collar separated, the latter anteriodorsal. .............. . ........ ... . Uronychiidae 1'. Not as above ..... ........ ... .... .. .... ..... ... ...... ..... ........ 2 2. Flattened , disc-shaped body ; strongly thigmotactic ..... .......... ........ .... .... Aspidiscidae 2'. Pa roral and endoral ciliature present ; body shape not strongly flattened ....... ............ ........ 3 3. Many more than three left marginal cirri , typically eight ......... .. .... ...... .... ..... Certesiidae 3'. Three or fewer left marginal cirri ..... ...... .... .. .4 4. Relatively wide , anteriorly-opened oral cavity ; body nearly round in cross-section ... ....... .. . ....................... ..... ................. Gastrocirrhidae 4'. Ventrally-oriented oral cavity ; body mo re dorso-vent rally compressed .... .... . Euplotidae