Heteroclinus heptaeolus, commonly known as the seven-spot triplefin, is a small, colorful fish species found in the coastal waters of Australia. It is easily recognizable by its distinctive markings and behavior.
Description & Characteristics
Heteroclinus heptaeolus is a relatively small fish, reaching a maximum size of 10.0 cm. Its body is elongated and slender, with a slightly compressed shape. The fish’s coloration is striking, featuring a vibrant orange-red base color with seven distinct black spots along its sides. These spots are generally round and arranged in a horizontal line. The head is also orange-red, while the fins are translucent with a faint orange hue.
Habitat and Occurrence
Heteroclinus heptaeolus is found in the temperate waters of Australia, inhabiting the shallow coastal regions of the southeastern and southwestern coasts. They are typically found in rocky reefs and tide pools, often congregating in small groups. This fish prefers the intertidal and subtidal zones, thriving in areas where there is strong wave action and abundant algae growth. They are also found in the neritic zone, which encompasses the shallow waters near the coastline.
Taxonomy
Heteroclinus heptaeolus belongs to the Class Teleostei, the most diverse group of bony fish, including most of the familiar fish species. It further falls under the Order Blenniiformes, which is commonly referred to as the blennies and includes a variety of small, often bottom-dwelling fish. Heteroclinus heptaeolus is part of the Clinidae family, commonly known as the clinids or clingfishes, which are generally characterized by their elongated bodies and adhesive pelvic fins.
Feeding
Heteroclinus heptaeolus is an opportunistic carnivore, primarily feeding on small invertebrates like crustaceans and mollusks. They utilize their strong jaws and sharp teeth to effectively capture and consume their prey. As a resident of the intertidal and subtidal zones, this fish can also be found foraging amongst the algae and seaweeds for small organisms.
Image References