Tylosurus
Tylosurus is a genus of needlefish, a group of predatory fish that are commonly found in marine and brackish waters around the world. These fish are characterized by their long, slender bodies and needle-like jaws, giving them a distinctive appearance. The genus Tylosurus belongs to the family Belonidae, which includes other needlefish species.
Common Names
Members of the genus Tylosurus are commonly referred to as "needlefishes" or "garfish" due to their elongated snouts and bodies. Specific species within the genus may have additional common names, such as the "Atlantic needlefish" (Tylosurus acus) and the "slender needlefish" (Tylosurus crocodilus).
Characteristics
Tylosurus species share a number of key characteristics:
- Elongated body: They are long and slender, with a body shape resembling a needle or a dart.
- Needle-like jaws: Their jaws are elongated and pointed, resembling a needle, which they use to catch prey.
- Small scales: Their bodies are covered with small, cycloid scales, giving them a smooth appearance.
- Dorsal fin: They have a single dorsal fin that is located near the rear of their body.
- Anal fin: They have a single anal fin located near the tail.
- Pelvic fins: Pelvic fins are typically small or absent.
- Coloration: Their color can vary by species but generally ranges from silvery to bluish-green, often with darker markings.
Environments
Tylosurus species are typically found in coastal and oceanic waters, often in shallow, inshore environments. They can tolerate a wide range of salinity, making them adaptable to both marine and brackish waters. They prefer warmer waters and are common in tropical and subtropical regions.