Cyerce nigricans reaches 4 cm. Small sacoglossan mollusk (Caliphyllidae) Indo-Pacific with uniform black body with extraordinary foliaceous cerata shaped like yellow-orange-white plumes edged black, undulating in spectacular dance (hence nigricans, black). Lives from 5 to 30 m on green algae of coral reefs of central Indo-Pacific. Sap-sucker. Legendary macro photo subject for its undulating plume-like cerata resembling a dance, among most photographed sacoglossans.
Frequently asked questions
How big is the Black-yellow cyerce?
Black-yellow cyerce (Cyerce nigricans) reaches 1–4 cm in length.
At what depth can you find the Black-yellow cyerce?
Black-yellow cyerce is found between 5–30 m deep.
Is the Black-yellow cyerce dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Black-yellow cyerce?