Description ²

Ground color translucent greyish-white. A narrow, median dark brown line extends posteriorly from frontal margin, between rhinophores to anterior of branchial plumes, where it joins the two lines from the extra-branchial appendages, a similar extends from posterior of branchial plumes to tip of tail which bears a subterminal band of yellow. Rhinophores bear 10-12 lamellae; clavus cadmium yellow to orange on distal half. Extra-rhinophoral appendages with a subterminal ring of cadmium yellow to orange and a wide, oblique band of dark bfrown just proximal of subterminal ring. Branchial plumes 3, uni- and bipinnate, whitish with cadmium yellow to orange distally, and with a dark brown, rather oval spot on outer basal surface of rachis of each plume. Extra-branchial appendages cadmium yellow to orange on distal third leaving extreme tip white, a dark brown line extends along dorsal surface of proximal half of each appendage.

Size ²

Up to 27mm in length.

Geographic Range ²

Carmel, Monterey Co., CA, to Bahía Tortugas, Baja California, Mexico.

Notes ²

Found in the low, rocky intertidal, and subtidal to 20 meters. In the Monterey Bay area, thus far reported only from the subtidal, but does occur in the intertidal in southern California.

References ²

CAMACHO-GARCÍA, Y. E., & J. ORTEA. 2000. A new species of Trapania (Nudibranchia: Goniodorididae) from the Pacific coast of Central America. Revista de Biologia Tropical 48(2-3):317-322.

GOSLINER, T. M., & S. J. FAHEY. 2008. Systematics of Trapania (Mollusca: Nudibranchia: Goniodorididae) with descriptions of 16 new species. Systematics & Biodiversity 6(1):53-98. PDF

HERMOSILLO, A., & Á. VALDÉS. 2004. Two new species of dorid nudibranchs (Mollusca, Opisthobranchia) from Bahía de Banderas and La Paz, Mexico. Proceedings of the California Academy of Sciences, series 4, 55(28):550-560. PDF

MACFARLAND, F. M. 1966. Studies of opisthobranchiate mollusks of the Pacific coast of North America. Memoirs of the California Academy of Sciences 6:1-546, pls. 1-72. PDF

McDONALD, G. R. 1983. A review of the nudibranchs of the California coast. Malacologia 24(1-2):114-276. PDF

Additional Info ²

WoRMS

Sources and Credits

1. (c) Gary McDonald, all rights reserved, uploaded by Gary McDonald
2. (c) Gary McDonald, some rights reserved (CC BY-SA)

More Info

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