This animal can reach a total length of at least 60 mm.
It has a grey-green to dark green body with blackish longitudinal wrinkles running down the length of the body.
A different color form with pale yellowish green background has been observed around Taiwan.

The rhinophores and gills are typically black.
This animal can reach a total length of at least 60 mm. It has a grey-green to dark green body with blackish longitudinal wrinkles running down the length of the body. A different color form with pale yellowish green background has been observed around Taiwan.
The rhinophores and gills are typically black.
Nembrotha milleri