|
Name |
Picture |
Characteristic |
Taxonomy |
|
Blue-green algae
(cyanobacteria) |
 |
1. blue green
color
2. gliding movement
3. prokaryote |
Kingdom Monera
i.e. Annabella sp. |
|
Euglenoids
<.4mm |
 |
1. sometimes
green
2, flagellate
3. red eye spot |
Phylum Euglenida
i.e. Euglena sp. |
|
Dinoflagellates
<.4mm |
 |
1. free
swimming
2. tough armor
3. flagellate
4. autotrophic, heterotrophic |
Phylum
Dinoflagellate |
|
Rotifers
.4mm - 2 cm |
 |
1. corona with
cilia
2. hairy appendages
3. transparent with lorica
4. free swimming or attached
5. organs, compressed body |
Phylum Rotifer
Class Bdelloided
Class Monogononta |
|
Hydra
2 cm |
 |
1. green brown
or colorless
2. body and tentacles contract and stretch
3. primitive organs |
Phylum Cnidaria
i.e. Hydra sp. |
|
Flatworms
1-15+ mm |
 |
1. flattened
2. eye spots
3. move in gliding motion |
Phylum Platyhelminthes
Class Turbellaria
i.e. Planaria sp. |
|
Roundworms
.2-10 mm |
 |
1. moves in
rapid “s” form
2. round body
3. bilateral
4. anterior, posterior openings |
Phylum
Nematodes |
|
Oligochaetes
1.5 mm - >2 cm |
 |
1. segmented
2. worm motion
3. hair bundles (setae) |
Phylum Annelida
Class Oligochaeta |
|
Leeches
> 1 cm |
 |
1. predatory
or parasitic
2. terminal suckers
3. hermaphroditic |
Phylum Annelida
Class Hirudinea |
|
Gastrotricha
.1-1.5mm |
 |
1. mainly
benthic
2. head bristles
3. eat algae, bacteria, protozoa |
Phylum Gastrotricha
Order Chaetonotida |
|
Tardigrades
Little water bears
< 1 mm |
 |
1. head and 4
trunk segments
2. 4 pair legs
3. eyes
4. herbivores |
Phylum
Tardigrada |
