Pseudocerotid C
photos 1,4: Cory Pittman, Ma`alaea Bay, Maui, 25-32 ft.. Size: 45 mm. (Halimeda community)
photos 2,3: Ralph Turre, Ma`alaea Bay, Maui, and Sugar Beach, Maui, in Halimeda bed, 26 ft..

This worm is part of the community of organisms living in and around beds of the algae Halimeda kanaloana.

Update: Flatworm specialist Rene Ong of the National University of Singapore has narrowed the genus down to Pseudoceros based on photos of a similar worm's underside posted on iNaturalist.

BACK to mottled or speckled with marginal bands