Javan flounder – Pseudorhombus javanicus

Javan flounder, Pseudorhombus javanicus, Pseudorhombus javanicus

Pseudorhombus javanicus is a species of flatfish belonging to the family Paralichthyidae. These fish are known for their flattened bodies and eyes positioned on one side of the head, a characteristic adaptation for life on the seabed.

Description & Characteristics

Pseudorhombus javanicus can reach a maximum size of 35.0 cm. Like other flatfishes, this species exhibits a distinct asymmetry in its body. One side of the body is pigmented and serves as the upper surface, while the other side is white and lies against the seabed. This adaptation allows them to effectively camouflage themselves against the seafloor.

Habitat and Occurrence

Pseudorhombus javanicus is typically found in marine zones at depths ranging from 22.0 to 38.0 meters. These depths are classified as the bathyal zone, representing the transition between the continental shelf and the abyssal plain. This species is commonly found in these specific depths across its geographic range.

Taxonomy

Pseudorhombus javanicus belongs to the Class: Teleostei, Order: Pleuronectiformes, and Family: Paralichthyidae. The Teleostei group is the largest and most diverse group of bony fishes, while the Pleuronectiformes order is characterized by the presence of flatfishes. The Paralichthyidae family, commonly known as the “left-eyed flounders,” comprises numerous species exhibiting this unique adaptation.

Feeding

Like many other bottom-dwelling fishes, Pseudorhombus javanicus is a carnivore. Its diet consists mainly of small crustaceans and benthic invertebrates, which it captures using its specialized mouth and sensory organs.

Associated Species

Image References

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