ClipArt ETC
"Portion of the body-wall of Hydra, showing ectoderm cells above, separated by "structureless lamelia" from three flagellate endoderm cells below. The latter are vacnolated, and contain each a nucleus and several dark granules. In the middle ectoderm cell are seen a nucleus and three nematocysts, with trigger hairs projecting beyond the cuticle. A large nematocyst with everted thread, is seen in the right-hand ectodermal cell." — Encyclopedia Britannica, 1893

Body-wall

"Portion of the body-wall of Hydra, showing ectoderm cells above, separated by "structureless lamelia"…

"Diagram showing types of canal system. --After Korschelt and Heider. The flagellate regions are dark throughout, the mesogloea is dotted, the arrows show the direction of the currents. All the figures represent cross-sections through the wall. A. Simple Ascon type (Ec., outer layer; En., inner layer; Mg., mesogloea). B. Sycon type, with flagellage radial chambers (r.c.). CC. Leucon type, with flagellate side aisles on the main radial chambers. D. Still more complex type, with small flagellate chambers (f.ch.)." -Thomson, 1916

Sponge Canal System

"Diagram showing types of canal system. --After Korschelt and Heider. The flagellate regions are dark…

"A colony of Cercomonas termo, a typical flagellate infusorian." -Whitney, 1911

Cercomonad Flagellate

"A colony of Cercomonas termo, a typical flagellate infusorian." -Whitney, 1911

"Eudorina. A colony of 16 flagellate cells imbedded in a gelatinous matrix." — Galloway

Eudorina

"Eudorina. A colony of 16 flagellate cells imbedded in a gelatinous matrix." — Galloway

Euglena viridis is a species of unicellular protists in the Euglenaceae family of flagellate organisms.

Euglena

Euglena viridis is a species of unicellular protists in the Euglenaceae family of flagellate organisms.

Infusoria is an obsolete collective term for minute aquatic creatures like ciliates, euglenoids, protozoa, and unicellular algae that exist in freshwater ponds. The first type exists in the common fresh-water organism known as Euglena. The spindle-shaped body is surrounded by a delicate cuticle perforated at one point, where a funnel-shaped depression, the gullet, leads into the soft protoplasmic interior. From the base of this depression the protoplasm is drawn out in the form of a delicate ship-like process known as the flagellum. Shown here is Flagellate Infusoria (fig 8A); (c) pulsating vacuole; (e) eye-spot; (g) gullet; (n) nucleus; (t) flagellum.

Flagellate Infusoria

Infusoria is an obsolete collective term for minute aquatic creatures like ciliates, euglenoids, protozoa,…

"Diagram of simple type of sponge. c, cloaca; ch, chambers, lined with flagellate entoderm; e.p., external pores; i.p., internal pores; mes., mesenchyma; o, osculum; r.c., radiating canals. In the adult sponge the canals and flagellate chambers become much more complex than figured here." — Galloway

Sponge

"Diagram of simple type of sponge. c, cloaca; ch, chambers, lined with flagellate entoderm; e.p., external…

Diagram showing the Sycon type of sponge. ec., ectoderm; r.c., radiating canals; i.p., internal pores; mes., mesenchyma, e.p., external pores; en1, entoderm; en2, flagellate entoderm; f.c., flagellate chambers.

Sycon Sponge

Diagram showing the Sycon type of sponge. ec., ectoderm; r.c., radiating canals; i.p., internal pores;…