Ericthonius rubricornis is a species of amphipod crustacean, belonging to the family Ischyroceridae. These small, laterally compressed creatures are a common sight in various marine environments, particularly in shallow coastal waters.
Description & Characteristics
Ericthonius rubricornis exhibits a characteristic reddish-brown coloration, especially prominent in the appendages. They possess a slender body with a distinctive pair of prominent antennae. The average size for this species ranges from a few millimeters to a centimeter in length. While the exact maximum size remains undocumented, they are generally considered small organisms compared to other marine crustaceans.
Habitat and Occurrence
Ericthonius rubricornis thrives in shallow coastal waters, primarily residing in the intertidal zone and the uppermost regions of the subtidal zone. They are often found clinging to rocks, seaweeds, and other submerged structures, favoring areas with a high abundance of algae and detritus. This distribution makes them a common sight in the Neritic zone, particularly in the Infralittoral zone.
Taxonomy
Ericthonius rubricornis is classified within the phylum Arthropoda, specifically under the class Malacostraca. This class encompasses a diverse group of crustaceans characterized by their segmented bodies and appendages. Within Malacostraca, Ericthonius rubricornis belongs to the order Amphipoda, which includes a variety of laterally compressed crustaceans that lack a carapace. Finally, Ericthonius rubricornis is categorized under the family Ischyroceridae, a group of amphipods known for their distinctive body shape and feeding habits.
Feeding
Ericthonius rubricornis is a detritivore, meaning it primarily feeds on decaying organic matter. This includes algae, plant fragments, and animal remains that accumulate on the seafloor or within their preferred habitats. Their feeding habits play a significant role in the decomposition and nutrient cycling of these marine ecosystems.
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