Archaster lorioli is a species of starfish belonging to the family Archasteridae. It is a common and widespread species found in various marine environments.
Description & Characteristics
Archaster lorioli is a relatively small starfish, typically reaching a maximum size of around 5 centimeters in diameter. It has a distinctive five-rayed body with a rounded shape. The arms are relatively short and thick, with a smooth texture. The aboral surface (upper surface) is typically covered in small, granular ossicles, while the oral surface (underside) has a series of ambulacral grooves that run along the length of each arm. The color of Archaster lorioli can vary widely, ranging from pale brown to reddish-purple.
Habitat and Occurrence
Archaster lorioli is a common species found in a variety of marine habitats, including rocky shores, sandy bottoms, and seagrass meadows. It is typically found in shallow water, with a depth range of up to 50 meters. Archaster lorioli is particularly prevalent in the intertidal zone, where it can be found exposed to the air during low tide. It is a cosmopolitan species, meaning it is found in many parts of the world. Its distribution extends across various marine zones, from the tropical to the temperate regions.
Taxonomy
Archaster lorioli is classified within the Class Asteroidea, which encompasses all starfish species. It belongs to the Order Valvatida, a group of starfish characterized by having a valvate (hinged) mouth. Within this order, Archaster lorioli is further classified within the Family Archasteridae, which includes starfish with a distinctive morphology and a wide variety of adaptations for their specific habitats.
Feeding
Archaster lorioli is an omnivorous species, meaning it feeds on a variety of organisms. Its diet includes algae, detritus, and small invertebrates such as worms, mollusks, and crustaceans. The starfish uses its tube feet to capture and move food to its mouth. Archaster lorioli plays an important role in marine ecosystems by contributing to the decomposition of organic matter and the nutrient cycle. Its feeding habits also help to maintain the balance of the food web within its habitat.
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