Bathytoshia
Bathytoshia is a genus of deep-sea sharks in the family Centrophoridae. These sharks are known for their slender bodies and distinctive dentition, with long, sharp teeth adapted for catching and tearing prey in the deep ocean. They are found in various regions of the world, typically inhabiting depths of 1,000 to 2,000 meters. The genus currently includes three recognized species: Bathytoshia infernalis, Bathytoshia brevicaudata, and Bathytoshia saldanhai.
Common Names
Bathytoshia sharks are commonly referred to as "gulper sharks" due to their large, gaping mouths and their presumed feeding strategy of swallowing prey whole.
Characteristics
Bathytoshia sharks exhibit a number of distinctive characteristics, including:
- Slender body: Their bodies are elongated and slender, with a pointed snout and a long, whip-like tail.
- Large mouth: They possess a large, terminal mouth that is equipped with long, sharp teeth.
- Dentition: Their teeth are needle-like, with a single, prominent cusp that is adapted for tearing flesh.
- Large eyes: They have large, oval-shaped eyes that are positioned on the top of their heads, allowing them to see in the dim light of the deep ocean.
- Small fins: Their fins are relatively small, especially their pectoral fins, which are narrow and pointed.
- Smooth skin: Their skin is smooth and scaleless, with no prominent ridges or bumps.
- Coloration: They are typically dark brown or black in color, which helps them camouflage in the depths.
Environment
Bathytoshia sharks are primarily found in the deep ocean, typically inhabiting depths of 1,000 to 2,000 meters. They prefer areas with a soft, muddy bottom, where they can ambush prey. They are often found in association with seamounts and submarine canyons.