Two new Raabena species and a new Pararaabena species (Ciliophora,Entodiniomorphida) with redescriptions of Raabena bella and Pararaabena dentata |
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| Affiliation: | 1. The Food Processing Center, University of Nebraska–Lincoln, Lincoln, Nebraska 68588;2. Food Science and Technology Department, University of Nebraska–Lincoln, Lincoln, Nebraska 68588;3. Ecolab Research Center, 655 Lone Oak Drive, Eagan, Minnesota 55121;4. 3M Center, 201-03-E-03, St. Paul, Minnesota 55144, USA |
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| Abstract: | The genera Raabena and Pararaabena (Ciliophora, Entodiniomorphida, Blepharocorythidae) were monospecific, and their type species are Raabena bella Wolska, 1967 and Pararaabena dentata Wolska, 1968. They have been found in Asian elephants and closely resemble each other: ovoid and laterally compressed body; non-retractable adoral ciliary zone; funnel-shaped vestibulum; three non-retractable somatic ciliary arches. Furthermore, the positional relationship between the vestibular ciliary zone and the anterior dorsal ciliary zone identifies Raabena and Pararaabena: these two ciliary zones are connected in Raabena while they are separated in Pararaabena. While investigating entodiniomorphid ciliates of Asian elephants, the author often encountered ciliates similar to Raabena bella but with a sinuous body or with a small body and ciliates similar to Pararaabena dentata but with a slender body or with no or two caudal lobes. In this study, their general morphology and infraciliature were compared to R. bella and P. dentata to know whether they are new species or morphological variations in a species. As a result, the present study redescribed R. bella and P. dentata, and described R. sinuosa n. sp., R. bellafilia n. sp., P. gracilis n. sp., and morphotypes of P. dentata. |
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| Keywords: | Asian elephant Infraciliature ACZ" },{" #name" :" keyword" ," $" :{" id" :" k0035" }," $$" :[{" #name" :" text" ," _" :" adoral ciliary zone ADC" },{" #name" :" keyword" ," $" :{" id" :" k0045" }," $$" :[{" #name" :" text" ," _" :" anterior dorsal ciliary arch AP" },{" #name" :" keyword" ," $" :{" id" :" k0055" }," $$" :[{" #name" :" text" ," _" :" adoral polybrachykinety BLN" },{" #name" :" keyword" ," $" :{" id" :" k0065" }," $$" :[{" #name" :" text" ," _" :" body length BWD" },{" #name" :" keyword" ," $" :{" id" :" k0075" }," $$" :[{" #name" :" text" ," _" :" body width CL" },{" #name" :" keyword" ," $" :{" id" :" k0085" }," $$" :[{" #name" :" text" ," _" :" caudal lobe CO" },{" #name" :" keyword" ," $" :{" id" :" k0095" }," $$" :[{" #name" :" text" ," _" :" contractile vacuole CP" },{" #name" :" keyword" ," $" :{" id" :" k0105" }," $$" :[{" #name" :" text" ," _" :" cytoproct DAPR" },{" #name" :" keyword" ," $" :{" id" :" k0115" }," $$" :[{" #name" :" text" ," _" :" dorsal anterior primordium DPPR" },{" #name" :" keyword" ," $" :{" id" :" k0125" }," $$" :[{" #name" :" text" ," _" :" dorsal posterior primordium FL" },{" #name" :" keyword" ," $" :{" id" :" k0135" }," $$" :[{" #name" :" text" ," _" :" frontal lobe LF" },{" #name" :" keyword" ," $" :{" id" :" k0145" }," $$" :[{" #name" :" text" ," _" :" left fold LPR" },{" #name" :" keyword" ," $" :{" id" :" k0155" }," $$" :[{" #name" :" text" ," _" :" left primordium LVF" },{" #name" :" keyword" ," $" :{" id" :" k0165" }," $$" :[{" #name" :" text" ," _" :" longitudinal vestibular fibers MA" },{" #name" :" keyword" ," $" :{" id" :" k0175" }," $$" :[{" #name" :" text" ," _" :" macronucleus MAL" },{" #name" :" keyword" ," $" :{" id" :" k0185" }," $$" :[{" #name" :" text" ," _" :" macronuclear length MI" },{" #name" :" keyword" ," $" :{" id" :" k0195" }," $$" :[{" #name" :" text" ," _" :" micronucleus MIL" },{" #name" :" keyword" ," $" :{" id" :" k0205" }," $$" :[{" #name" :" text" ," _" :" distance between anterior end of macronucleus and center of micronucleus PAD" },{" #name" :" keyword" ," $" :{" id" :" k0215" }," $$" :[{" #name" :" text" ," _" :" polybrachykinety of anterior dorsal ciliary arch PDC" },{" #name" :" keyword" ," $" :{" id" :" k0225" }," $$" :[{" #name" :" text" ," _" :" posterior dorsal ciliary arch PK" },{" #name" :" keyword" ," $" :{" id" :" k0235" }," $$" :[{" #name" :" text" ," _" :" paralabial kineties PPD" },{" #name" :" keyword" ," $" :{" id" :" k0245" }," $$" :[{" #name" :" text" ," _" :" polybrachykinety of posterior dorsal ciliary arch PPK" },{" #name" :" keyword" ," $" :{" id" :" k0255" }," $$" :[{" #name" :" text" ," _" :" primordium of paralabial kineties PPV" },{" #name" :" keyword" ," $" :{" id" :" k0265" }," $$" :[{" #name" :" text" ," _" :" polybrachykinety of posterior ventral ciliary arch PVC" },{" #name" :" keyword" ," $" :{" id" :" k0275" }," $$" :[{" #name" :" text" ," _" :" posterior ventral ciliary arch RVF" },{" #name" :" keyword" ," $" :{" id" :" k0285" }," $$" :[{" #name" :" text" ," _" :" right vestibular fibers SUF" },{" #name" :" keyword" ," $" :{" id" :" k0295" }," $$" :[{" #name" :" text" ," _" :" suture of transverse vestibular fibers TVF" },{" #name" :" keyword" ," $" :{" id" :" k0305" }," $$" :[{" #name" :" text" ," _" :" transverse vestibular fibers VAPR" },{" #name" :" keyword" ," $" :{" id" :" k0315" }," $$" :[{" #name" :" text" ," _" :" ventral anterior primordium VCZ" },{" #name" :" keyword" ," $" :{" id" :" k0325" }," $$" :[{" #name" :" text" ," _" :" vestibular ciliary zone VK" },{" #name" :" keyword" ," $" :{" id" :" k0335" }," $$" :[{" #name" :" text" ," _" :" vestibular kinety band VL" },{" #name" :" keyword" ," $" :{" id" :" k0345" }," $$" :[{" #name" :" text" ," _" :" ventral left fold VO" },{" #name" :" keyword" ," $" :{" id" :" k0355" }," $$" :[{" #name" :" text" ," _" :" vestibular opening VOL" },{" #name" :" keyword" ," $" :{" id" :" k0365" }," $$" :[{" #name" :" text" ," _" :" distance between anterior body end and left edge of vestibular opening VPPR" },{" #name" :" keyword" ," $" :{" id" :" k0375" }," $$" :[{" #name" :" text" ," _" :" ventral posterior primordium VR" },{" #name" :" keyword" ," $" :{" id" :" k0385" }," $$" :[{" #name" :" text" ," _" :" ventral right fold VS" },{" #name" :" keyword" ," $" :{" id" :" k0395" }," $$" :[{" #name" :" text" ," _" :" vestibulum VSL" },{" #name" :" keyword" ," $" :{" id" :" k0405" }," $$" :[{" #name" :" text" ," _" :" distance between anterior body end and vestibular bottom |
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