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Goniobranchus cf. splendidus

Species Profile

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Goniobranchus cf. splendidus

Author: Undescribed

Order: Nudibranchia  Family: Chromodorididae

Maximum Size: 15 mm

Sightings: Whitsundays

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This species was recorded during a shallow shore dive at Horseshoe Bay, Bowen in tropical North Queensland on 26/10/2023. We have called it Goniobranchus cf. splendidus because of its partial resemblance to Goniobranchus splendidus.

Goniobranchus cf. splendidus is similar to Goniobranchus splendidus except for its deep black rhinophores, sans white edging, and also deep black gills. Neville Coleman has it in Nudibranch Encyclopedia, 2008, P143, from Byron Bay. A different form of Goniobranchus splendidus (confirmed by molecular sequencing) has also been recorded from the Percy Isles in the tropics, further south from Bowen, in Wilson et al, 2016. However that specimen has dark red rhinophores sans white edging, the typical colour to the gills, but the mantle margin is red with a fine gold inner edge – different to our find.

David A Mullins – November 2023

References:
– Coleman, N. (2008) Nudibranchs Encyclopedia. Neville Coleman’s Underwater Geographic Pty Ltd, Springwood, Qld.

– Wilson, N.G., Winters, A.E., Cheney, K.L. (2016). Tropical Range Extension for the Temperate, Endemic South-Eastern Australian Nudibranch Goniobranchus splendidus (Angas, 1864). Diversity 2016, 8, 16.

Other Sea Slugs in this Family (sighted)

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