Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 SECTION IY. THE FLAGELLATA OR MONADS. THK Flagellata or Monads are exceedingly minute protozoa, having oval bodies, with a nucleus and a con- tractile vesicle, and one or two long whip-like cilia. It is on account of the last-named fact that they have been called Flagellata. FIG. 743. Monads (UreJIa), magnified 1,000 diameter*. From Am. Naturalist. Not far removed from the Monads—even if they do not belong with them—are the Noctilucse (Fig. 744), very minute organisms which abound on the surface of the
Elements of zoölogy a Elements of zoölogy : a textbook elementsofzolo00tenn Year: c1875 SECTION IY. THE FLAGELLATA OR MONADS. THK Flagellata or Monads are exceedingly minute protozoa, having oval bodies, with a nucleus and a con- tractile vesicle, and one or two long whip-like cilia. It is on account of the last-named fact that they have been called Flagellata. FIG. 743. Monads (UreJIa), magnified 1,000 diameter*. From Am. Naturalist. Not far removed from the Monads—even if they do not belong with them—are the Noctilucse (Fig. 744), very minute organisms which abound on the surface of the sea, and which are remarkable for their phosphores- cence. They have a somewhat spherical and jelly-like body, with a groove on one side, from which there extends a thread-like loco- motive organ. FIG. 744.
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