Phylum: Rotatoria

1
Phylum Rotatoria Class
Monogononta
Order Ploima Family
Brachionidae Keratella gracilenta Description
Plate 005a. Lateral (left) and dorsal (right)
view of Keratella gracilenta. Plate 005b. Dorsal
(left) and ventral (right) view of Keratella
gracilenta. Plate 005c. Keratella gracilenta
female with egg. This Keratella species is
distinguished by the presence of small
projections on the terminal spine of the lorica.
Similar to Keratella cochlearis, but will
longer terminal spine, often both species found
in same environment. A filter feeder and common
planktonic rotifer.
2
Plate 005a. Lateral (left) and dorsal (right)
view of Keratella gracilenta.
3
Plate 005b. Dorsal (left) and ventral (right)
view of Keratella gracilenta.
4
egg
Plate 005c. Keratella gracilenta female with egg.