Tonicia lebruni is a species of chiton, a type of marine mollusc known for its eight overlapping shell plates. It is a relatively small species, inhabiting intertidal zones and shallow subtidal areas. Its presence adds to the diversity of these coastal environments.
Description & Characteristics
Tonicia lebruni is a small chiton, typically reaching a maximum size of around 20 millimeters in length. The shell is typically a dull brown or grayish-brown color, with a smooth, slightly glossy surface. The eight dorsal plates are well-defined and slightly convex, giving the chiton a slightly rounded appearance. The girdle, which is the fleshy area surrounding the shell, is covered with minute scales and often has a distinctive pattern of darker lines.
Habitat and Occurrence
Tonicia lebruni is primarily found in the intertidal zone, clinging to rocks and algae in exposed areas. This species is particularly prevalent in rocky shores and tide pools, where it can withstand the constant fluctuations in water levels and salinity. Tonicia lebruni is considered a common species in these habitats, contributing to the overall biodiversity of these coastal ecosystems. It is commonly found in the northeastern Atlantic Ocean, particularly along the coasts of France, Spain, and Portugal.
Taxonomy
Tonicia lebruni belongs to the Class: Polyplacophora, which comprises the chitons. This class is further classified within the Order: Chitonida, a group of marine molluscs characterized by their eight dorsal plates. Within this order, Tonicia lebruni is assigned to the Family: Chitonidae, a family containing a diverse range of chiton species.
Feeding
Like other chitons, Tonicia lebruni is a herbivore, scraping algae from surfaces using its radula, a tongue-like structure covered in rows of teeth. It plays an important role in its environment by grazing on algae, helping to control its growth and maintain the balance of the intertidal ecosystem.
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