Description
Body long-ovo id or flask-shaped ; oral region circular to oval, sometimes obviously pointed; circumoral dikinetids typically at anterior end of bipolar somatic kineties , not exceeding the number of somatic kineties (except some Enche/yodon species) ; clavate kineties from two to many ; seven genera. b 9 t;? 1. With a layer of scales on the body surface ........ .............. .......... Lepidotrachelophyllum 1'. Without a layer of scales .... ... ........ .......... .......... .2 2. Clavate dikinetids irregularly scattered within about 10 somatic kineties , but more densely concentrated anteriorly .. .. ....... ... Foissnerides 2'. Clavate dikinetids regularly arranged within two or more somatic kineties (i .e. , clavate kineties) .... .... ............. .. ...... ............ .......... .. ...... . 3. Anterior kinetids of somatic kineties densely packed with their cilia forming a "brush-like" anterior tuft ......... ... .. ....... ............ ....... Chaenea 3'. Somatic kinetids evenly spaced along kineties . ...... ..... ... .......... ..... ..... ... ...... ........ .......... ... .. . 4. Approximately 10 clavate kineties; somatic kineties slightly right spiralled after fixation .. .. ....... .... ............... .. ...... .. Acaryophrya 4' . Typically 2-3 clavate kineties ......... .. .... .. ... ...... 5 5. Anterior end typically blunt ; oral region a flattened circle ; three clavate kineties ....... .... . ..................................................... Enchelyodon 5' . Anterior end tapered ; oral region pointed .. ........ 6 6. Anterior apex slightly bent ventrally ; three clavate kineties ..... ...... ...... ... .... ... Lagynophrya 6'. Anterior apex not bent ventally; two clavate kineties .... .. .. .. ... ... ..... .......... Trachelophy/lum
Type species
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Body long-ovo id or flask-shaped ; oral region circular to oval, sometimes obviously pointed; circumoral dikinetids typically at anterior end of bipolar somatic kineties , not exceeding the number of somatic kineties (except some Enche/yodon species) ; clavate kineties from two to many ; seven genera. b 9 t;? 1. With a layer of scales on the body surface ........ .............. .......... Lepidotrachelophyllum 1'. Without a layer of scales .... ... ........ .......... .......... .2 2. Clavate dikinetids irregularly scattered within about 10 somatic kineties , but more densely concentrated anteriorly .. .. ....... ... Foissnerides 2'. Clavate dikinetids regularly arranged within two or more somatic kineties (i .e. , clavate kineties) .... .... ............. .. ...... ............ .......... .. ...... . 3. Anterior kinetids of somatic kineties densely packed with their cilia forming a "brush-like" anterior tuft ......... ... .. ....... ............ ....... Chaenea 3'. Somatic kinetids evenly spaced along kineties . ...... ..... ... .......... ..... ..... ... ...... ........ .......... ... .. . 4. Approximately 10 clavate kineties; somatic kineties slightly right spiralled after fixation .. .. ....... .... ............... .. ...... .. Acaryophrya 4' . Typically 2-3 clavate kineties ......... .. .... .. ... ...... 5 5. Anterior end typically blunt ; oral region a flattened circle ; three clavate kineties ....... .... . ..................................................... Enchelyodon 5' . Anterior end tapered ; oral region pointed .. ........ 6 6. Anterior apex slightly bent ventrally ; three clavate kineties ..... ...... ...... ... .... ... Lagynophrya 6'. Anterior apex not bent ventally; two clavate kineties .... .. .. .. ... ... ..... .......... Trachelophy/lum