Maximum length: 50 mm

Intense pink to blue body with a white margin along the mantle,

the margin and upper side of which has small spots (unlike the next species,

which has only a narrow margin).

Gills and rhinophores are yellow.

Photos 1 - 3 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 70 mm

Intense pink to cream colored, white body and a thin,

distinctive white margin on the mantle,

(the species above has a wider white margin with dots)

gills and rhinophores are orange to pale yellow.

Photos 1 - 3 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 45 mm

Cream to yellow body with three purple to dark red lines on the upper side, the outer lines connect the gills and rhinophores.

The gills and rhinophores are orange to red.

Photos 1 - 3 Johnny: Lembeh Strait North - Sulawesi

Maximum length: 30 mm

Violet-blue body with small, white-yellow and black spots.

There are large white spots along the edge of the mantle.

The gills and rhinophores are white with yellow to orange.

Photo 1 Johnny: Bangka Island North Sulawesi

Photos 2 - 3 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 40 mm

White body with brown, red or purple markings, with a series of white lines,

some of which may be interrupted.

White and purple spots all over the mantle.

The rinophores are white with red, brown or orange bands. 

Photos 1 - 3 Johnny: Banga Island North - Sulawesi

 Maximum length: 45 mm

Cream to yellow body with five dark, blue, purple or red longitudinal lines and equally colored edges from mantle to foot.

The gills are red, the rhinophores red with white tips.

Photo 1 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 110 mm

Slender, white to purple body, with many small, orange dots on the upper side and on the foot.

The mantle has a thin, blue to violet edge.

Often head - to - tail crawling around, usually seen in pairs.

Photos 1 - 4 Johnny: Hurghada Egypt

Photo 5 Astrid: Hurghada Egypt

 Maximum length: 90 mm

The body is cream to brownish, with black to red spots outlined in white.

There are thin blue lines on the mantle and foot.

The gills and rhinophores are yellow, pink to purple in color.

Often confused with Chromodoris leoparda, which has circles and no dots.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

Photos 3 - 5 Johnny: Lembeh Strait North - Sulawesi

Maximum length: 40 mm

White to yellowish body with thin, black or bluish-purple lines, blue to purple and yellow spots with soft edges between the lines and on the edge of the mantle.

The gills and rhinophores are brownish to orange.

Photos 1 - 3 Johnny: Lembeh Strait North - Sulawesi 

 Maximum length: 90 mm

White body with irregular patterns, mostly round, often black tubercles forming groups.

The rhinophores have black tips, the gills are black on the branches.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

Photo 3 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 25 mm

Brown to orange body with a series of black fine pointed needles ( Caryophyllidia ).

It has reddish-brown rhinophores and gills.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

 Maximum length: 25 mm

Body white or bluish to intense pink.

Purple warts on the upper side, the edge of the mantle is decorated

with an orange band or dense spots.

The gills and rhinophores are purple like the body.

Photo 1 - 2 Johnny: Bangka Island North Sulawesi

Photo 3 Johnny: Lembeh -Strait North - Sulawesi

Maximum length: 20 mm

White to yellow body with stalked tubercles spotted with purple or red.

Mantle margin with rows of pustules, mostly orange, yellow or purple.

The rhinophores are blue to purple.

Photo 1 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 20 mm

Feeds on sponges.

Photos 1 - 2 Johnny: Bangka Island North - Sulawesi

Maximum length: 0.7 - 1.5 cm

Maximum depth: 8 m

Body color: Lilac to light blue, with 3 yellow stripes (hence the name).

Feeds exclusively on sponges.

Often confused with Mexichromis similaris.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

Maximum length: 5 - 6 cm

Maximum depth: 27 m

Very variable in color, pink to brown, green, yellow, grey,

with yellow to pink dots, blue lines forming a net-like pattern.

Gills and rhinophores mostly with white, fine speckles.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

 Maximum length: 60 mm

Brown to black saddle spots on the upper side of their whitish body,

sometimes lines, they have a blue border along the mouth and foot.

The gills are red with blue or pink, with a yellow base,

the rhinophores are colored like the gills,

but have blue to purple rings around the base, which is bordered in yellow.

Photo 2 shows the animals during reproduction.

Photo 1 Johnny: Lembeh Strait North - Sulawesi

Photos 2 - 3 Johnny: Bangka Island North - Sulawesi

 Maximum length: 80 mm

Green pustules on the black body, in some forms connected to form longitudinal lines.

The foot end and the rhinophores are orange to red, the gills orange, red to green.

Photos 1 - 3 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 40 mm

Cream-colored with numerous narrow brown lines and faint red

and purple markings on the gill and rhinophores.

Photos 1 - 2 Johnny: Bangka Island North - Sulawesi

 Maximum length: 60 mm

This species is found throughout the tropical Indo-Pacific,

it has a dark to grey-green body coloration with rhinophores and gills that are usually black.

Photos 1 - 3 Johnny: Moalboal Philippines

Photo 4 Astrid: Moaboal Philippines

 Maximum length: 30 mm

The body is pink to dark brown, yellow to pink or orange pustules.

Rhinophores usually with a white ring at the base.

Widespread, but may include several species.

Photo 1 Johnny: Bali Indonesia

After long research on the internet and inquiries with marine biologists,

they could not tell me so far which Nembrotha it is,

it seems to be a new undiscovered species, there are some similar,

but none that has white dots between the gills and rhinophores, therefore sp.

Photos 1 - 3 Johnny: Bangka Island North - Sulawesi

 Maximum length:??

This animal here is also still undescribed, it is very similar to Nembrotha cristata,

only the color is different.

While the green one is already described,

this one and the one with the red spots (see the species above this one) are not yet described.

Photo 1 Johnny: Bangka Island North Sulawesi

 Maximum length: 40 mm

This species also has no name yet, but has already been described.

White body with a few black lines dorsally

and yellow pigment extending to the gill and further back.

Photos 1 - 2 Astrid: Bangka Island North Sulawesi

Maximum length: 8 - 10 cm fully grown, this little one was only around 1 cm long

Maximum depth: 1 - 20 m

This species is quite a large snail when fully grown.

The color can vary depending on the area.

Basic color: Bright yellow, patterned with black spots that vary greatly in number and size.

Gills and rhinophores yellow, black in juveniles.

Often confused with Notoris minor, which has a network of lines on the body.

Photo 1 Johnny: Bangka Island North Sulwesi

Maximum length: 100 mm

Light yellow body with black lines and dots.

Rigid and hard body.

Feeds on the yellow calcareous sponge.

Photos 1 - 4 Johnny: Bangka Island North - Sulawesi

Maximum length: 0.6 cm

Maximum depth: not known

It was only newly described in 2023.

Its name longicornis refers to its extremely long rhinophores.

So far it has only been sighted on the Marshal Islands, here is proof that it also lives in North Sulawesi.

Photo 1 Johnny: Bangka Island North Sulawesi

Maximum length: 30 mm

White body with grayish-pink spots, sometimes with a black dot in the spot,

rough and sandy texture.

White rhinophores and gills.

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

Maximum length: 3 cm, this one had max. 0.8 cm

Maximum depth: 25 m

So far this snail is only known around Japan and Australia,

it has also been spotted in the Gulf of Oman and Hawaii,

it now also exists in North Sulawesi, where we found it in 2024.

Photo 1 Johnny: Bangka Island North Sulawesi

 Maximum length: 100 mm (usually 60 mm)

Black to dark green or steel blue body with bright yellow spots or stripes.

The front of the head and the edge of the foot have yellow lines.

The front of the gills and the rhinophores are bright yellow.

Photos 1 - 2 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 60 mm

The body is black-green to deep blue, some with, others without large blue spots.

They have bright blue bands on the head, mouth and foot edge.

Photos 1 - 6 Johnny: Lembeh Strait North - Sulawesi

 Maximum length: 80 mm

Olive green with a yellow-green spot on the head, edged in black.

Rhinophores are usually black.

There are also yellow pigments at the end of the body.

Photos 1 - 3 Johnny: Moalboal Philippines

 Maximum length: ?

It has not yet been described.

This group has more species than any other group,

it does not seem to represent a single natural group but a collection of several species.

Photos 1 - 2 Johnny: Bangla Island North Sulawesi

 Maximum length: 40 mm

Although the species has already been described, it does not yet have its own name.

This specimen had a length of about 8 mm.

Orange with purple to black markings.

The rhinophores are also orange and have black tips.

Photo 1 Astrid: Bangka Island North Sulawesi

Photo 2 Johnny: Bangka Island North Sulawesi

 Maximum length: ??

A still undescribed animal.

Very difficult to photograph, you can hardly see the rhinophores

and the gills look as if they are covered in sand.

Photos 1 - 3 Johnny: Bangka Island North Sulawesi

Maximum length: 0.5 - 1.6 cm

Maximum depth: 52 m

Body color: Light purple-pink to dark purple.

The color is darker at the beginning and end of the body where the white mantle edge begins.

The mantle edge is opaque and slightly wavy.

Rhinophores translucent at the base, dark reddish at the tips.

They are found on sand and coral rubble and on sponges that they eat.

Photo 1 Johnny: Bangka Island North Sulawesi

 Maximum length: 20 mm

White body with orange to brown edges.

The rhinophores and gills also have an orange to brown border on the outside and inside.

Photos 1 - 2 Johnny: Bangka Island North - Sulawesi

Maximum length: 30 mm

Bluish black body with many thin yellow longitudinal stripes and a blue spot behind each rhinophore 

( indented on the photo ) and a blue foot edge.

The gills and rhinophores are almost black with a yellow base.

Photos 1 - 2 Johnny: Bangka Island North - Sulawesi