Reticulidia

Reticulidia is a class of marine protists within the phylum Cercozoa. They are a diverse group of amoebae characterized by their reticulate pseudopodia, which are thin, thread-like extensions of the cytoplasm that form a network. This network allows them to move and capture prey, often other microscopic organisms. While they are primarily found in marine environments, some species also inhabit freshwater habitats.

Halgerda Reticulidia – Reticulidia halgerda

Mushroom Coral Reticulidia – Reticulidia fungia

Common Names

There are no widely used common names for Reticulidia. They are generally referred to by their scientific name.

Characteristics

Reticulidia are characterized by the following features:

  • Reticulate pseudopodia: These are the most distinctive feature of the group. They are thin, branching, and interconnected, forming a network that spreads out from the cell body.
  • Amoeboid movement: Reticulidia use their pseudopodia to move and capture prey. They can change their shape and direction quickly.
  • Heterotrophic nutrition: They are heterotrophic, meaning they obtain their food by consuming other organisms, usually bacteria, algae, and other protists.
  • Lack of cell walls: Most Reticulidia lack rigid cell walls, although some species may have a thin, flexible outer layer called a pellicle.
  • Diverse morphology: Reticulidia exhibit a wide range of shapes and sizes, from small, spherical cells to large, branched forms.

Environments

Reticulidia are primarily found in marine environments, particularly in benthic sediments and the water column. Some species also inhabit freshwater habitats, including lakes, ponds, and rivers. They can be found in a variety of ecological niches, including:

  • Benthic sediments: They are common in marine sediments, where they feed on bacteria and other microorganisms.
  • Water column: Some species are planktonic, living suspended in the water column.
  • Freshwater habitats: A smaller number of species inhabit freshwater habitats.

References

For further information and scientific resources, consult these reliable sources: