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Rotifer Identification: Lepadellidae

Explore the intricate world of Lepadellidae classification and morphology at the Hue University Rotifer Taxonomy workshop held from 6-12 March 2010. Learn about subgenera, trophi, lorica, and identification do’s and don’ts. Discover the biogeography and ecology of these fascinating creatures in various habitats. Dive deep into the taxonomy of Colurella, Lepadella, Heterolepadella, Xenolepadella, Paracolurella, and Squatinella. Gain insights into marine, brackish water, and freshwater species and their diverse feeding habits.

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Rotifer Identification: Lepadellidae

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  1. Rotifer Identification: Lepadellidae • Classification • Morphology: • Lorica • Trophi • Identification do’s and don’ts • Biogeography • Ecology Hue University Rotifer Taxonomy workshop 6-12 March 2010

  2. Classification Lepadellidae Harring, 1913 • ColurellaBory de St. Vincent, 1824 (20 spp.) • LepadellaBory de St. Vincent, 1826 (122 spp.) Subgenera: • Heterolepadella Bartos, 1955 • Xenolepadella Hauer, 1926 • Paracolurella Myers, 1936 (2 spp.) • Squatinella Bory de St. Vincent, 1826 (6 spp.) Hue University Rotifer Taxonomy workshop 6-12 March 2010

  3. Morphology: Family Characters • Trophi: Malleate • Body: • Loricate • Withheadshield Hue University Rotifer Taxonomy workshop 6-12 March 2010

  4. Colurella Hue University Rotifer Taxonomy workshop 6-12 March 2010

  5. Colurella: a difficult taxon! Colurella psammophila 3-5 – Colurella colurus f. compressa6 Hue University Rotifer Taxonomy workshop 6-12 March 2010

  6. Lepadella Hue University Rotifer Taxonomy workshop 6-12 March 2010

  7. Lepadella Hue University Rotifer Taxonomy workshop 6-12 March 2010

  8. Lepadella Heterolepadella Xenolepadella Hue University Rotifer Taxonomy workshop 6-12 March 2010

  9. Paracolurella Hue University Rotifer Taxonomy workshop 6-12 March 2010

  10. Squatinella Hue University Rotifer Taxonomy workshop 6-12 March 2010

  11. Identification do’s and don’ts • Do: • Always: 1000x, immersion oil • Well-contracted specimens! • External morphology • Carefull: watch out for: • Lorica ornamentation – use the “dry dorsal plate” trick • Cross section! • Don’t: • Squeeze the animals Hue University Rotifer Taxonomy workshop 6-12 March 2010

  12. Biogeography ? Some endemics Some cosmopolitan Hue University Rotifer Taxonomy workshop 6-12 March 2010

  13. Ecology • Marine: several, psammobiontic • Brackish water: several • Freshwater: the rest • Littoral • Psammobiontic • Habitat requirements: diverse • Feeding: browsersonbacteria film

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