Description
usuall Midventral surface barren ; at least one ventral cirra l file extending adjacent to left marginal cirra l file , which may be on dorsal surface ; midventral cirral file obliquely extends into midventral surface and terminates; no parental cirri remain during division morphogenesis ; 1. F transverse cirri , absent ; caudal cirri , absent (Fig. pe 53). ne .. . ;.~-~ .=~ ..- 1'. Fr .. .. ve po se FAMILY Fronto perist on mid T· stomat genera Dorsal surface . From Foissner (1995). 53. Deviata abbravescens. A. Ventral surface; B. surface . From Foissner (1995). RDER SPORADOTRICHIDA Faure-Fremiet , 1 9 61 ventral cirri not in distinct linear files on l surface (except see Laurentie!la , dromopsis, and Onychodromus), but as red frontal and ventral groups , arising y from six anlagen ; two families. b 9<9 rontoventral cirri scattered on anterior ristomal region, sometimes in posterior , ver on mid-area of ventral surface .... .......... .. . .. ........... .. ..... ....... ... .. .......... .. Trachelostylidae ontoventral cirri scattered over mid -area of ntral surface , usually with three cirri sterior to posterior vertex of oral region but veral genera with conspicuous files of cirri ...................................... Oxytrichidae TRACHELOSTYLIDAE SMALL & LYNN , 1985 ventral Cirri scattered on anterior omal region , sometimes in posterior, never -area of ventral surface ; kinetosomes for ogenesis arise de novo on ventral surface ; 7 . 458 CILIOPHORA, STICHOTRI b Y<9 1. Paroral and endoral form an angle to each other, with endoral anterior to paroral .. . Terricirra 1' . Paroral and endoral parallel to each other with endoral anterior to paroral. ...... ... .. .................. 2 2. Left serial oral polykinetids in two parts .... . .. .... .. .. . ...... .. .................... ... ...... .. . Hemisincirra 2' . Left serial oral polykinetids continuous .... .. ..... 3 3. Some frontoventral cirri form a file along anterior right border of peristomal area .. .. ..... 4 3' . Frontoventral cirri not arranged in a file ; 2 frontoventral cirri anterior of transverse cirri .................................................. Trachelostyla 4. Without caudal cirri ............... .. ....... Lamtostyla 4' . With caudal cirri ........ .. ................ Gonostomum
Type species
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usuall Midventral surface barren ; at least one ventral cirra l file extending adjacent to left marginal cirra l file , which may be on dorsal surface ; midventral cirral file obliquely extends into midventral surface and terminates; no parental cirri remain during division morphogenesis ; 1. F transverse cirri , absent ; caudal cirri , absent (Fig. pe 53). ne .. . ;.~-~ .=~ ..- 1'. Fr .. .. ve po se FAMILY Fronto perist on mid T· stomat genera Dorsal surface . From Foissner (1995). 53. Deviata abbravescens. A. Ventral surface; B. surface . From Foissner (1995). RDER SPORADOTRICHIDA Faure-Fremiet , 1 9 61 ventral cirri not in distinct linear files on l surface (except see Laurentie!la , dromopsis, and Onychodromus), but as red frontal and ventral groups , arising y from six anlagen ; two families. b 9<9 rontoventral cirri scattered on anterior ristomal region, sometimes in posterior , ver on mid-area of ventral surface .... .......... .. . .. ........... .. ..... ....... ... .. .......... .. Trachelostylidae ontoventral cirri scattered over mid -area of ntral surface , usually with three cirri sterior to posterior vertex of oral region but veral genera with conspicuous files of cirri ...................................... Oxytrichidae TRACHELOSTYLIDAE SMALL & LYNN , 1985 ventral Cirri scattered on anterior omal region , sometimes in posterior, never -area of ventral surface ; kinetosomes for ogenesis arise de novo on ventral surface ; 7 . 458 CILIOPHORA, STICHOTRI b Y<9 1. Paroral and endoral form an angle to each other, with endoral anterior to paroral .. . Terricirra 1' . Paroral and endoral parallel to each other with endoral anterior to paroral. ...... ... .. .................. 2 2. Left serial oral polykinetids in two parts .... . .. .... .. .. . ...... .. .................... ... ...... .. . Hemisincirra 2' . Left serial oral polykinetids continuous .... .. ..... 3 3. Some frontoventral cirri form a file along anterior right border of peristomal area .. .. ..... 4 3' . Frontoventral cirri not arranged in a file ; 2 frontoventral cirri anterior of transverse cirri .................................................. Trachelostyla 4. Without caudal cirri ............... .. ....... Lamtostyla 4' . With caudal cirri ........ .. ................ Gonostomum