The Porcupine Ray – Urogymnus asperrimus is a distinctive ray species known for its unique appearance and intriguing biology. This fascinating creature is found in a variety of marine habitats, showcasing its adaptability and resilience.
Description & Characteristics
The Porcupine Ray – Urogymnus asperrimus is a robust ray, reaching a maximum size of 147.0 cm. It is characterized by its rough, sandpaper-like skin, covered in numerous dermal denticles that give it a spiky appearance. These denticles serve a protective function, shielding the ray from predators.
Habitat and Occurrence
The Porcupine Ray – Urogymnus asperrimus exhibits a preference for deeper waters, with a depth range of 15.0 to 217.0 meters. They are commonly found in both continental shelf and slope environments, inhabiting a variety of marine zones, including the epipelagic (sunlit surface waters), mesopelagic (midwater), and bathypelagic (deep-sea) zones. Their adaptability to diverse environments makes them a significant component of these aquatic ecosystems.
Taxonomy
The species Urogymnus asperrimus belongs to the Class: Elasmobranchii, which encompasses cartilaginous fishes like sharks and rays. It is further classified within the Order: Myliobatiformes, a group known for their flattened bodies and wing-like pectoral fins. Finally, the Porcupine Ray – Urogymnus asperrimus is a member of the Family: Dasyatidae, commonly referred to as the stingray family, distinguished by their venomous spines.
Feeding
The Porcupine Ray – Urogymnus asperrimus is a carnivore, feeding primarily on a variety of benthic invertebrates, including crabs, decapods, edible crabs, rock lobsters, and worms. They also consume small fish and zoobenthos, demonstrating a diverse diet suited to their deep-sea habitat.
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