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Brachionus quadridentatus
Phylum Rotifera
Class Monogononta
Order Ploima
Family Brachionidae
 
Distinguishing Characteristics
  • Anterolateral spines longer than anterointermediate spines
  • Anteromedian and anterolateral spines diverage laterally
  • Two posterior spines usually present
  • Lorica stippled giving pustulate appearance
  • Length: lorica 188-418 µm, posterolateral spine 20-156 µm, anterolateral spine 17-49 µm, anteromedian dorsal
    spine 21-72 µm,
  • Width: lorica 115-265 µm
  • Distance between anterolateral spines 98-200 µm