Malignantus

Malignantus is a genus of small, predatory fish belonging to the family Labridae, which includes wrasses and other similar species. The genus is characterized by its small size, typically ranging from 2 to 5 inches in length, and its distinctive coloration, which often includes shades of blue, green, and yellow. Malignantus species are found in the Indo-Pacific region, with most species inhabiting coral reefs and rocky areas.

The genus includes several species, with the most well-known being Malignantus nigricans, commonly known as the black wrasse. This species is notable for its aggressive behavior and its ability to change color to blend in with its surroundings. Other species in the genus include Malignantus brevis and Malignantus longirostris, which are also known for their distinctive coloration and behavior.

Malignantus species are important components of their ecosystems, as they help to control populations of smaller fish and invertebrates. They are also popular among aquarium enthusiasts due to their striking appearance and relatively easy care requirements. However, like all fish, they require proper care and a suitable environment to thrive.