Pseudoceros jebborum Newman and Cannon, 1994
The diagnostic character of this species is the cream-orange color with an inner wide black band and an outer cream-orange narrow rim.
External anatomy: Body margin with shallow ruffles slightly tapered posteriorly. A cream-orange background with two marginal bands: an inner wide black and an outer cream-orange with a bright yellow rim, some grayish near the lateral margins and the pseudotentacles. Ventrally, it shows the same color pattern but the pharyngeal folds are dark purple. Pseudotentacles formed by simple folds of the anterior margin, a small cerebral cluster of about 60 small eyes, and a pharynx with elaborated folds.
Internal anatomy: The male apparatus consists of a long seminal vesicle connected to a short and not coiled ejaculatory duct. A small and round prostatic vesicle and a large stylet housed in a shallow antrum. The female antrum is shallow with a short and wide vagina surrounded by the cement glands.
This species has been found in Heron Island, Great Barrier Reef in Australia, Madang in Papua New Guinea, and Hawaii, USA.
A rare species that has been found under coral rubble at the reef slope.
The holotype is a whole mount of an entire specimen and the paratype is a set of serial histological sections deposited at the Queensland Museum in Brisbane, Australia.
This species was described by Newman & Cannon (1994) and placed into the group 2, characterized by marginal bands, according to the categorization based on the color and color pattern made by the same authors. Among all the species of this group, Pseudoceros jebborum is the only one with orange background. P. paralaticlavus has a similar pattern but it belongs to group 3 characterized by longitudinal stripes and has a black background.
Pseudoceros sp. Poulter, 1987.