Thecacera pacifica
{{Short description|Species of gastropod}}
{{Speciesbox
| image = Thecacera pacifica (Polyceridae Nudibranch).jpg
| image_caption = A live individual of Thecacera pacifica in situ, head end towards the left
| genus = Thecacera
| species = pacifica
| authority = Bergh, 1883{{in lang|de}} Bergh R. (1883). "Beiträge zu einer Monographie der Polyceraden". Verhandlungen der Koniglich-kaiserlich Zoologische-botanischen Gesellschaft in Wein (Abhundlungen) 33: 135-180, plates 6-10.
}}
Thecacera pacifica is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Polyceridae. It is sometimes also nicknamed the Pikachu nudibranch due to its resemblance to the Pokémon character Pikachu.{{Cite web|url=https://featuredcreature.com/new-week-nudibranch-thecacera-pacifica/|title = New Week Nudibranch: Thecacera pacifica|date = 26 October 2010}}
Distribution
This species is known from the African coast of the Indian Ocean (Mozambique) to Indonesia and Vanuatu. It has also been reported from the Gulf of Mexico, Atlantic Ocean.
Description
This polycerid nudibranch is translucent orange in colour with black tips to the rhinophores and gills. The rhinophore sheaths are edged with black with a patch of blue at the widest part. This blue colour is also present at the tip of the tail and at the tip of the lateral papillae beside the gills, separated from the orange of the body by a black band. Some specimens have black linear marks on the body with blue centres.[http://www.seaslugforum.net/find/thecpaci Rudman, W.B., 2002 (April 23) Thecacera pacifica Bergh, 1883.
References
{{Commons category|Thecacera pacifica}}
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