Siphopteron ladrones (Carlson & Hoff, 1974)
- Location
- Sakuraguchi, Ishigaki and Yaeyama, Okinawa, Japan
- Date
- 2018/12/07
- Length
- 8mm
- Depth
- 9.0m
- Water temperature
- 26.0℃
Description
A small head-shield slug reaching about 5 mm in body length. Background colour is creamy yellow-white to pale pink. The parapodia and visceral mass bear large brown patches, and portions of the parapodial margin carry brown lines. A faint orange line runs along the edge of the cephalic shield and along the midline. The posterior projection of the visceral mass is yellow-white with a pointed tip. The species swims actively using its parapodia.Distribution
Originally described from the waters around Guam in the Mariana Islands. Subsequently recorded broadly across the Indo-West Pacific, including the Aldabra Atoll, Indonesia, and Japan.Etymology
The specific epithet ladrones refers to the former name of the Mariana Islands — "Islas de los Ladrones" (Islands of Thieves) — which is the type locality.References
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 Siphopteron ladrones
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.