Marine life  /  Nudibranchs & sea slugs  /  Cadlinella
Reviewed 2026-09-06
Species entry

Cadlinella

Cadlinella ornatissima

Pink and covered in tall soft papillae, a small dorid on sponge and rubble.

Size
To about 3 cm
Depth
3–25 m
Habitat
Sponge on rubble
Active
Day and night
Range
Indo-Pacific
Rarity
Lembeh Strait
3 stars of 5, a good week should turn one up
SP-01
cadlinella · full body · habitat
4:3 · min 2400px

A small dorid, usually 15 to 25 mm and occasionally to about 3 cm, pale pink to yellow and covered over the whole mantle with tall soft conical papillae, each drawn out to a fine point and often a shade darker at the tip. The rhinophores are pink and lamellate, and the gill is a small circle of pinkish branches towards the rear. The papillae are long enough to give the animal a shaggy outline, which is what identifies it at a glance.

It feeds on sponges and is found on rubble, under loose rock and on sponge-encrusted debris, by day as well as at night. The colour is consistent enough that it is not easily confused with anything else on the same ground; the difficulty is size, and it is normally found by working slowly over a small patch rather than by covering distance. Recorded from about 3 to 25 m.

Where to find:

LocationRarity Best monthsDepthHabitat
Lembeh Strait Indonesia editorial estimate
3 stars of 5, a good week should turn one up
Year-round
3–25 m
Sponge on rubble
Anilao Philippines editorial estimate
3 stars of 5, a good week should turn one up
Year-round
3–25 m
Rubble and sponge
Dauin & Dumaguete Philippines editorial estimate
3 stars of 5, a good week should turn one up
Year-round
3–25 m
Rubble and sponge
Bali Indonesia editorial estimate
3 stars of 5, a good week should turn one up
Year-round
3–25 m
Rubble and rock

Ratings are per location: 1 means found on most dives that look for it, 5 means a handful of records. Where enough dives have been logged the figure is calculated from them; otherwise it is an editorial estimate, and says so. We publish habitat and destination, not the dive site.

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