Diaphorodoris mitsuii (Baba, 1938)
- Location
- Gontarou Rock, Hayama, Kanagawa, Japan
- Date
- 2014/06/10
- Length
- 6mm
- Depth
- 10.0m
- Water temperature
- 20.0℃
Description
A tiny Onchidorididae, body length up to 10 mm. Ground colour translucent white, with white fine papillae densely distributed over the body surface. A colour form with yellowish ground and papillae also exists. The outermost mantle margin matches the ground colour; just inside it runs a yellow to orange-yellow band. The tail bears the same pattern. The mid-dorsal ridge on the posterior end of the foot is a key diagnostic feature. Rhinophores and gills translucent white.Distribution
Type locality is Japan. Subsequent records from Hong Kong and Korea / Yellow Sea.Remarks
Originally described as Lamellidoris mitsuii, and later transferred to Diaphorodoris. Reported to feed on encrusting colonial bryozoans. Distinguished from other Diaphorodoris species by the mid-dorsal ridge on the posterior end of the foot.References
- Diaphorodoris mitsuii, Baba, K. 1938a. Three new nudibranchs from Izu, Middle Japan. Annotationes Zoologicae Japonenses 17(2):130-133.
- ミツイラメリウミウシ（新稱）, Baba K. (1949). Opisthobranchia of Sagami Bay collected by His Majesty the Emperor of Japan (相模湾産後鰓類図譜). Iwanami Shoten, Tokyo. 4+2+194+7 pp., pls. 1-50.
- 高岡生物研究会. (2002). 日本海のウミウシ. 第2版.
A Kindle field guide by the site author
Kimoto N. (2026). Sea Slugs of Japan & the Indo-Pacific, 2nd Edition.
Kindle Edition
View on Amazon PR (Amazon Associates)Seasonality
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Photos of Diaphorodoris mitsuii
Tag:
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.