Pseudobiceros A
photo 1: Cory Pittman. Ma`alaea Bay, Maui. 25-31 ft (Halimeda community). photo 2: Lloyd Johnson, Kealia, Maui. about 3 cm long. photo 3: Makua, Oahu. 90 ft.

Body ovate, wider posteriorily and raised medially. Margin moderately ruffled. Background body color gray-brown, darker along marginal band, speckled with minute dark brown dots and containing scattered irregular elongate pale patches and streaks that may merge with pale transverse lines extending through the margin. Marginal band wide, pale gray-brown, interrupted by numerous whitish transverse lines. Median ridge finely mottled orange brown, darker posteriorily. Pseudotentacles pointed with pale tips.

Keoki Stender's Marine Life Photography website has photos of one swimming (he calls it "Salt and Pepper Flatworm"). His animal is perhaps slightly closer in appearance to the worm pictured on the CD.

Pseusobiceros A appears closely related to Pseudobiceros sp. 20 (from Indonesia) on the Newman & Cannon CD. Among other differences, the latter has a dark inner marginal band with a light rim. The Guam Reef Life website has several photos that they identify as or similar to Pseudobiceros sp. 20. (1)  (2) These could be interpreted as intermediate between the Hawaiian worm and the Indonesian worm. It's possible that they all (including the Hawaiian worm) are a single variable species.

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