Dendrochirus

Dendrochirus is a genus of marine ray-finned fish belonging to the subfamily Pteroisinae, part of the family Scorpaenidae, commonly known as scorpionfishes. These fish are native to the Indo-Pacific region. The genus is characterized by their venomous spines, which are used for defense. They are typically small to medium-sized fish, with elaborate pectoral fins that give them a distinctive appearance.

Species within the Dendrochirus genus are often referred to as dwarf lionfish. They are distinguished from their larger relatives in the genus Pterois by their smaller size and more ornate fins. Dendrochirus species inhabit coral reefs and rocky outcrops, where they can camouflage themselves amongst the coral and algae. They are carnivorous, feeding on small crustaceans and fish.

Reproduction in Dendrochirus involves external fertilization, with females releasing eggs and males releasing sperm into the water column. The larvae are planktonic and drift in the ocean currents before settling on suitable habitat. Due to their venomous spines, Dendrochirus species are generally not targeted by fisheries, though they can be encountered by divers and aquarium enthusiasts. Their venom, while painful, is not typically lethal to humans.