Ceratodoris lambat (Gosliner, 2004)

Description

The body is wide and dorso-ventrally flattened, with a well-developed, distinct notal border. Body color is opaque yellowish white. A broad mid-dorsal band of brown pigment runs from anterior to the rhinophores to the posterior end of the foot, interrupted by an irregular network of white pigment. The notal papillae, rhinophores and gill bear irregular maroon spots along their length. There are six pairs of elongate notal papillae along the body sides and a single mid-dorsal papilla anterior to the gill. The gill consists of three elongate, unipinnate branches; the two lateral branches are undivided and the anterior one is bifid at the base. The rhinophores are elongate with 18 congested lamellae. Radular formula 18 x 1.1.0.1.1. Living animal 7 mm; preserved specimen 6 mm.

Distribution

The type locality is Devil's Point, Maricaban Island, Batangas Province, Luzon, Philippines (10 m depth). Known only from Luzon Island (Philippines).

Etymology

Verbatim from the original description (Gosliner, 2004, p.139):

The specific epithet lambat is derived from the Filipino word for net, referring to the network of white markings that is visible through the brown notal pigment.

Remarks

Originally described as Okenia lambat in Gosliner, T.M. 2004 Proceedings of the California Academy of Sciences 55(5): 125-161; subsequently transferred to Ceratodoris. Found beneath a small stone at 10 m depth.

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References

• Okenia lambat Gosliner, sp. nov., Gosliner T. M. (2004). Phylogenetic Systematics of Okenia, Sakishmaia, Hopkinsiella and Hopkinsia (Nudibranchia: Goniodorididae) with descriptions of new species from the tropical Indo-Pacific". Proceedings of the California Academy of Sciences 55(5): 125-161.
• Okenia lambat, Terrence Gosliner, Ángel Valdés and David Behrens. (2015). Nudibranch and Sea Slug Identification Indo-Pacific. New World Pubns Inc.
• PAZ-SEDANO S., COBB G., GOSLINER T.M. & POLA M. (2024). Filling gaps in the knowledge of Goniodorididae taxa (Mollusca, Gastropoda, Nudibranchia) with description of seven new species. Zootaxa. 5443(4): 523-547. https://doi.org/10.11646/zootaxa.5443.4.3