9 photos - 4 species


Marionia olivacea

no english designation

Maximum length: 40 mm

Brown with light and dark brown spots interspersed with dark blue lines and blue dots.

The rhinophores have branched tips.

Photos 1 - 3 Astrid: Moalboal Philippines


Marioniopsis arborescens ( Bergh, 1890 )

Marionia aborescens

Maximum length: 10 cm

Maximum depth: 18 m

Variable colors. White, orange, greenish-brown and turquoise.

Translucent white and turquoise gills that look like small branched coral polyps.

The color changes depending on the soft corals it feeds on.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi


Notobryon bijecurum ( Odhner, 1936 )

Iridescent nudibranch, Ward's nudibranch

Maximum length: 5 - 10 cm

Maximum depth: 15 m

Very variable coloration and size, African ones grow up to 5 cm, Western Pacific ones up to 10 cm.

Orange to red, gray, green, ochre, translucent - blue to brown.

Photos 1 - 3 Johnny: Bangka Island North Sulawesi


Tritonia sp.

No english designation

Maximum length: not known, this one was about 1.5 cm long

Maximum depth: not known: Found it at a depth of 12 meters

Not much is known about this species, as it has not yet been identified.

Snails of this family feed on coral polyps.

They are masters of camouflage, they look exactly like the coral,

on which they live, hide perfectly in it and on which they also feed.

Photo 1 Johnny: Bangka Island North Sulawesi