Janolus savinkini, common name purple-tipped janolus, is a colorful sea slug, an arminina (a suborder of Janolus) nudibranch, a marine gastropod mollusc in the family Janolidae.

[1] The body and caruncle of this species are yellow with a hue of light orange.

The papillae and cerata are also this colour except for the tips, which are blue/purple, hence the common name.

It is found in East Asian waters and is believed to be extremely rare in Okinawa.

This gastropod-related article is a stub.