Terebratulina meridionalis is a species of brachiopod, a type of marine invertebrate. These creatures are characterized by their distinctive bivalve shells that enclose a soft body, unlike bivalve mollusks like clams or mussels. This specific species, Terebratulina meridionalis, is a common inhabitant of certain marine environments, playing a significant role in their delicate ecosystems.
Description & Characteristics
Terebratulina meridionalis typically grows to a maximum size of around 20 millimeters. Its shell is characterized by fine radial ribs, creating a unique and visually appealing texture. The shell’s color can range from white to pale brown, often blending seamlessly with the surrounding environment. These features contribute to the species’ successful adaptation and survival in its chosen habitats.
Habitat and Occurrence
Terebratulina meridionalis is primarily found in the intertidal and subtidal zones of the marine environment. This means they inhabit areas that are exposed to the air during low tide and submerged during high tide, as well as areas that are constantly underwater. These brachiopods are often found attached to hard substrates like rocks, shells, and seaweed, utilizing these surfaces for stability and protection. Their preference for these habitats has led to their widespread occurrence in a variety of marine ecosystems.
The species is most prevalent in the neritic zone, the shallowest part of the ocean that extends from the coastline to the edge of the continental shelf. This zone is characterized by its relatively warm temperatures and abundant sunlight, providing ideal conditions for Terebratulina meridionalis to thrive.
Taxonomy
Terebratulina meridionalis belongs to the Class: Rhynchonellata, Order: Terebratulida, and Family: Cancellothyrididae. This classification places the species within a larger group of brachiopods known for their distinctive shell structure and feeding mechanisms. The Cancellothyrididae family, in particular, is characterized by its members’ possession of a cancellate (lattice-like) structure on their shells, which is also evident in Terebratulina meridionalis.
Feeding
Terebratulina meridionalis is a suspension feeder, meaning it obtains its food by filtering particles from the surrounding water. It uses its lophophore, a crown of ciliated tentacles, to trap microscopic food items like phytoplankton and bacteria. These food particles are then transported towards the mouth, providing the necessary nutrients for the brachiopod to survive and grow.
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