👉 Paractenopsyllus is a species of fish in the order Chondrichthyes, commonly known as the sea cucumber. It belongs to the family Syrphidae, and it has a long, slender body with a streamlined shape. The name "paractenopsyllus" comes from the Latin word meaning "long," which describes its elongated body shape. Paractenopsyllus is an important taxonomic group in the fish kingdom and plays a crucial role