Siphopteron flavum (Tokioka & Baba, 1964)
- Location
- Gontarou Rock, Hayama, Kanagawa, Japan
- Date
- 2014/06/10
- Length
- 4mm
- Depth
- 7.0m
- Water temperature
- 20.0℃
Description
A tiny gastropterid, 2.5-5 mm in length. The parapodia are large with a parabolic outline, inclined anteriorly, broadest in the anterior half; the head barely protrudes beyond the parapodial front. The dorsal hump is large, ovoid, longer than wide, with a smooth surface and a small knob-like protuberance near the right posterior corner. The free mantle margin is very short and the ctenidium is very small, nearly degenerate. Living animals are uniformly bright chrome yellow with minute white dots; the posterior edge of the cephalic shield, the mid-dorsal crest and the knob-like protuberance are ivory black. They swim actively by flapping the parapodia.Distribution
Type locality: shallow water of Sagami Bay around Kasazima off Sasima, Japan. Also recorded from the Japan Sea side at Sado Island.Etymology
The specific epithet flavum is the neuter form of Latin flavus ("yellow"), referring to the bright chrome-yellow body of the living animal.Remarks
Originally placed in Gastropteron, later transferred to Siphopteron.References
- Gastropteron flavum n.sp., Tokioka T. & Baba K. (1964). FOUR NEW SPECIES AND A NEW GENUS OF THE FAMILY GASTROPTERIDAE FROM JAPAN (GASTROPODA : OPISTHOBRANCHIA). Publications of the Seto Marine Biological Laboratory. 12(3): 201-229. https://doi.org/10.5134/175366
- Siphopteron flavum (Tokioka & Baba, 1964) comb. nov., Gosliner T.M. (1989). Revision of the Gastropteridae (Opisthobranchia: Cephalaspidea) with descriptions of a new genus and six new species. The Veliger 32(4): 333-381.
- キイロウミコチョウ, 小野篤司. (1999). ウミウシガイドブック. TBSブリタニカ.
- キイロウミコチョウ, 鈴木敬宇. (2000). ウミウシガイドブック〈2〉. TBSブリタニカ.
- 高岡生物研究会. (2002). 日本海のウミウシ. 第2版.
- キイロウミコチョウ, 小野篤司. (2004). 沖縄のウミウシ. ラトルズ.
- キイロウミコチョウ, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- キイロウミコチョウ, 小野篤司 & 加藤昌一. (2009). ウミウシ. 誠文堂新光社.
- Siphopteron flavum, Terrence Gosliner, Ángel Valdés and David Behrens. (2015). Nudibranch and Sea Slug Identification Indo-Pacific. New World Pubns Inc.
Featured in this book
Terrence Gosliner, Ángel Valdés and David Behrens. (2018). Nudibranch and Sea Slug Identification Indo-Pacific 2nd Edition. New World Pubns Inc.
New World Publications
This species, Siphopteron flavum, is included in the book.
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Photos of Siphopteron flavum
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.