Oncaea venusta

Oncaea venusta is a species of copepod with a cosmopolitan distribution, but lacking from the Arctic Ocean.^[1] Females are 1.1–1.3 mm (0.043–0.051 in) long, while males are only 0.8–1.0 mm (0.031–0.039 in) long.^[2] The front of the head is unusually wide, and the body is brightly coloured, usually yellow–orange, but sometimes red.^[2] O. venusta feeds on a variety of zooplankton and phytoplankton.^[2]

Oncaea venusta
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Copepoda
Order:	Cyclopoida
Family:	Oncaeidae
Genus:	Oncaea
Species:	O. venusta
Binomial name
Oncaea venusta Philippi, 1843