Description
0Pk3 , a long , curved linear kinetosomal f i I e , extending from anterior right of 0Pk2 posterior to cytostome ; oral area in anterior half (Fig. 4) . 1. Both ends . . .. . 1'. Not as ab - -J? -. .. I . " ( • tochilum margaritaceum, ventral surface . orac et al. , 1974a . nostomella hovassei, left ventral surface. re , 1975b . LOXOCEPHALIDAE Jankowski, 1964 void ; holotrichous ; anterior oral area , in larger ciliates , auxokineties to t of oral region , of 1 to many ven genera. b 9 <:? e? tapered , truncated and non-ciliated ..... . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . Balanonema ove .... ... .... .. ............... ... ... ... ............ ... ... 2 586 CILIOPHORA, 2. Preo ral suture, prominent. ......... .. .. ... .... .... ...... 3 2'. Preoral suture , not prominent. .. .. ...... .. .. ....... ... 5 3. Preoral suture directly anterior to oral region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . Cardiostomate 3'. Preora l suture extending anteriorly to right and dorsally .... .... ... ... .... .... .... .. .. .. .... ...... ...... ... ..... 4 4. Left ventral somatic kineties insert on ventral preoral part of anterior suture ... .... ......... .... ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Paraloxocepha 4' . Anterior sutu re extending to right immediately anterior to oral region ..... . ......... Loxocephalus 5. Both ends flattened ; relatively large unciliated area at anterior end ..... ..... ......... ... .... .... ... .. .. ... 6 5' . Both ends rounded, cil iated; 0Pk1 and 0Pk2 with hook-like kinetosomal files on right erds .... .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parad 6. Oral polykinetids reduced to single zigzag rows of kinetosomes almost perpendicular to oral area and body ...... .... .. ... ............. .. Paratetrahymena 6'. Ora l polykinetids rectangu lar, small .. ...... ...... . ... . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . .. . .. . .
Type species
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Raw text
0Pk3 , a long , curved linear kinetosomal f i I e , extending from anterior right of 0Pk2 posterior to cytostome ; oral area in anterior half (Fig. 4) . 1. Both ends . . .. . 1'. Not as ab - -J? -. .. I . " ( • tochilum margaritaceum, ventral surface . orac et al. , 1974a . nostomella hovassei, left ventral surface. re , 1975b . LOXOCEPHALIDAE Jankowski, 1964 void ; holotrichous ; anterior oral area , in larger ciliates , auxokineties to t of oral region , of 1 to many ven genera. b 9 <:? e? tapered , truncated and non-ciliated ..... . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . Balanonema ove .... ... .... .. ............... ... ... ... ............ ... ... 2 586 CILIOPHORA, 2. Preo ral suture, prominent. ......... .. .. ... .... .... ...... 3 2'. Preoral suture , not prominent. .. .. ...... .. .. ....... ... 5 3. Preoral suture directly anterior to oral region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . Cardiostomate 3'. Preora l suture extending anteriorly to right and dorsally .... .... ... ... .... .... .... .. .. .. .... ...... ...... ... ..... 4 4. Left ventral somatic kineties insert on ventral preoral part of anterior suture ... .... ......... .... ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Paraloxocepha 4' . Anterior sutu re extending to right immediately anterior to oral region ..... . ......... Loxocephalus 5. Both ends flattened ; relatively large unciliated area at anterior end ..... ..... ......... ... .... .... ... .. .. ... 6 5' . Both ends rounded, cil iated; 0Pk1 and 0Pk2 with hook-like kinetosomal files on right erds .... .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parad 6. Oral polykinetids reduced to single zigzag rows of kinetosomes almost perpendicular to oral area and body ...... .... .. ... ............. .. Paratetrahymena 6'. Ora l polykinetids rectangu lar, small .. ...... ...... . ... . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . .. . .. . .