1. Rotifer Identification: Lecanidae
Morphology
Important features
Classification
Identification do’s and don’ts
Problems
Biogeography
Diversity
Hue University Rotifer Taxonomy workshop 6-12 March 2010

2. Morphology Ventral view
Hue University Rotifer Taxonomy workshop 6-12 March 2010

3. Morphology: important features
Hue University Rotifer Taxonomy workshop 6-12 March 2010

4. Morphology: important features
Hue University Rotifer Taxonomy workshop 6-12 March 2010

5. Classification Lecanidae = Lecane
Formerly: Lecane, Hemimonostyla, Monostyla
Related to Proalidae
Hue University Rotifer Taxonomy workshop 6-12 March 2010

6. Identification do’s and don’ts
Work: Segers 1995 and recent publications
Do:
Always: 1000x, immersion oil
Well-contracted specimens!
External morphology
Small details!
Don’t:
Squeeze the animals
Hue University Rotifer Taxonomy workshop 6-12 March 2010

7. Problems Taxonomy of closely related taxa e.g.: L. curvicornis group
Hue University Rotifer Taxonomy workshop 6-12 March 2010

8. Biogeography Many cosmopolitan species Latitudinal variation
endemism important, diverse patterns
Hue University Rotifer Taxonomy workshop 6-12 March 2010

9. Diversity & Ecology Ca. 200 species Predominantly tropical/warm water
Habitat:
littoral, benthonic, interstitial
most acidophilic (exception: L. papuana)
in crab gill chambers, …
Hue University Rotifer Taxonomy workshop 6-12 March 2010