Uroleptus (Caudiholosticha) stueberi ( Foissner, 1987 ) Li et al., 2017
publication ID |
https://doi.org/ 10.26515/rzsi/v123/i2/2023/170532 |
DOI |
https://doi.org/10.5281/zenodo.13185094 |
persistent identifier |
https://treatment.plazi.org/id/C7386D06-FFD4-FFC5-2985-F9D8ED8D8AE7 |
treatment provided by |
Felipe |
scientific name |
Uroleptus (Caudiholosticha) stueberi ( Foissner, 1987 ) Li et al., 2017 |
status |
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Uroleptus (Caudiholosticha) stueberi ( Foissner, 1987) Li et al., 2017 ( Figure 1 View Figure 1 A-J, Table 1-2)
Diagnosis of Indian population: Pellicle flexible, wide-rounded anterior end, slightly narrowed posterior end (without tail). Movement is rapid. Average body size 160 × 60 μm, length-to-width ratio about 3:1. Flattened dorso-ventrally. Consistently two ellipsoidal macronuclear nodules slightly left of body midline in midbody; 1–4 globular micronuclei, roughly 4 μm in diameter, positioned near macronuclear nodules at varying locations. Contractile vacuole at left cellular margin near mid-body. Cortical granules absent. Cytoplasm is colourless and granular. Adoral zone occupies approximately 37% of body length in protargol preparations, composed of 47–56 membranelles. Buccal field deep, wide; Paroral and endoral strongly curved, optically intersecting. Ventral ciliature consists of three enlarged frontal cirri; one buccal cirrus; one parabuccal cirrus; two frontoterminal cirri, placed just behind distal end of adoral zone; 15-20 mid-ventral cirral pairs extending to the level of transverse cirri, right cirri slightly larger than left, invariably three large transverse cirri; one right and one left marginal row with about 24 and 22 cirri, respectively. Dorsal ciliature consists of 7 or 8 dorsal kineties, the first three kineties more or less bipolar and kineties 4–7/8 shortened posteriorly. Three caudal cirri (only one specimen found with caudal cirri stained), one each at rear ends of dorsal kineties 1–3.
Material deposited: Two slides with protargol-impregnated specimens have been deposited at the Protozoology Section (National Zoological Collections), Zoological Survey of India, Kolkata, India, with the accession numbers Pt. 5313 and Pt. 5342.
Occurrence and ecology: Thus far, reports from Austria ( Foissner, 1987), China ( Li et al., 2017) and India (present study). Usually feeds on bacteria and other small ciliates.
Remarks: The Indian population of Uroleptus (Caudiholosticha) stueberi ( Foissner, 1987) Li et al., 2017 has a smaller body size in comparison with other populations. However, other morphometric specifications are mostly overlapping (for detail, please see Table 2).
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