Cephaloscyllium isabella, also known as the Isabella catshark, is a species of catshark in the family Scyliorhinidae. This relatively small shark is characterized by its slender build and distinctive markings, making it a fascinating subject of study for marine biologists.
Description & Characteristics
Cephaloscyllium isabella is a small to medium-sized shark, with adults typically reaching a maximum size of 100.0 cm. Its body is slender and elongated, with a pointed snout and large, oval-shaped eyes. This species exhibits a unique color pattern, characterized by a light brown to grayish-brown background adorned with numerous dark brown spots and blotches. These markings are particularly prominent on its dorsal surface, providing camouflage against the rocky and coral-rich environments it inhabits.
Habitat and Occurrence
Cephaloscyllium isabella is a demersal shark, meaning it primarily lives on or near the bottom of the ocean floor. It exhibits a wide depth range, occurring from 5.0 to 690.0 meters, which places it within the bathypelagic zone, characterized by low light and cold temperatures. The species is commonly found in the western central Pacific Ocean, ranging from the Philippines to the western coast of Australia, making it a prevalent presence in these diverse marine ecosystems.
Taxonomy
Cephaloscyllium isabella belongs to the Class: Elasmobranchii, Order: Carcharhiniformes, and Family: Scyliorhinidae. This classification places it within the group of cartilaginous fishes, specifically sharks and rays. The order Carcharhiniformes, to which it belongs, encompasses a diverse range of sharks known for their distinctive features, such as their five gill slits and the presence of two dorsal fins. The family Scyliorhinidae, commonly known as catsharks, is characterized by its members’ slender bodies and unique markings.
Feeding
Cephaloscyllium isabella is a carnivorous species, with a diet consisting primarily of benthic invertebrates, such as crustaceans, mollusks, and polychaetes. Its feeding strategy involves actively searching for prey on the seabed, using its keen sense of smell and touch to locate potential food sources. It uses its sharp teeth to grasp and subdue its prey before consuming it.
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