Dinoplax fossus is a species of chitons, a group of marine mollusks known for their eight overlapping shell plates, or valves. They are found in a variety of marine environments and are important components of coastal ecosystems.
Description & Characteristics
Dinoplax fossus, like other chitons, has a flattened, oval-shaped body with eight articulated dorsal plates, giving them a distinctive appearance. This species is typically small in size, with adults reaching a maximum length of around 20 mm. The shell plates are often rough and irregular, with a brownish-grey or greenish coloration, providing camouflage amongst the rocks and algae where they reside.
Habitat and Occurrence
Dinoplax fossus is a common inhabitant of the intertidal zone, particularly on rocky shores and in tide pools. This species is often found clinging to rocks, sometimes in crevices or under overhangs, where they are protected from direct sunlight and wave action. They are typically found in the lower intertidal zone, where they are submerged for longer periods, making them a defining characteristic of the infralittoral zone.
Taxonomy
Dinoplax fossus belongs to the Class Polyplacophora, commonly known as chitons, a group of mollusks characterized by their eight shell plates. Within this class, Dinoplax fossus is classified under the Order Chitonida, which includes a wide array of chiton species. This species is further categorized within the Family Chaetopleuridae, a family of chitons known for their small size and distinctive shell ornamentation.
Feeding
Dinoplax fossus is a herbivore, primarily feeding on algae that grow on rocks and other surfaces in their intertidal habitat. They use their radula, a ribbon-like structure in their mouth equipped with rows of tiny teeth, to scrape off algae and other food particles. They play an important role in the marine ecosystem by helping to control algal growth and keep these surfaces clean.
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