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Keratella cochlearis
Phylum Rotifera
Class Monogononta
Order Ploima
Family Brachionidae
Distinguishing Characteristics
Additional Notes
  • Keratella cochlearis forms:
    • K.c. cochlearis : Posterior polygons are open.
    • K.c. faluta : Posterior spine stout and wide at base.
    • K.c. hispida : Lorica covered with spinelets, indistinct polygonal facets.
    • K.c. robusta : Posterior polygons are closed.
    • K.c. tecta: Posterior spine absent. (could also be considered K. tecta)
  • For biometric information on lorica length vs. body width for three Keratella species and three K. cochlearis forms, click on graph below.
Additional Pictures
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