Depth
Leptopsammia · Cnidarians (Jellyfish, Anemones & Corals)

Sunset Cup Coral

Leptopsammia pruvoti

0-40m
Depth Range
Variable
Max Size
Mediterranean
Distribution
0-40m
Depth Range
Variable
Max Size
Reef & Open
Habitat
Carnivore
Diet
Solitary
Social
LC
IUCN Status
Kingdom Animalia
Phylum Cnidaria
Genus Leptopsammia
Species pruvoti

Cnidarian

Identification & Biology

  • IdentificationA small, solitary stony coral with a cylindrical, chalky white skeleton. The living polyp is brilliant golden-yellow to orange, expanding into a cup shape to feed. The colour is vibrant and eye-catching against dark cave walls.
  • SizeSkeleton diameter up to 2 cm. Height up to 1.5 cm.
  • Social HabitSolitary but often found in dense aggregations on shaded surfaces, creating carpets of golden cups.
  • HabitatDark caves, overhangs, and vertical walls with minimal light. Requires shaded hard substrates.
  • Depth5 to 80 m. Found on shaded surfaces throughout its depth range.
  • Feeds OnPlankton and suspended organic particles. Does not contain symbiotic algae and relies entirely on capturing food from the water.
  • DistributionMediterranean Sea and adjacent eastern Atlantic. Common in Maltese cave environments.
  • DescriptionLeptopsammia pruvoti is one of the jewels of Mediterranean cave diving. Dense clusters of golden-yellow polyps on dark cave walls create a stunning visual display. Unlike the pig-tooth coral, it contains no symbiotic algae and thrives in complete darkness, relying entirely on plankton capture. It is a common and welcome sight in the many accessible caves around the Maltese coastline.

Range

Habitat & Distribution

Found across the Mediterranean, inhabiting reef & open environments. Active from the surface down to 40m depth.

Where Malta divers have spotted this species

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Sightings are logged by divers using our What Did You See? dive-log tool. View the full live sightings map.

Detail

Preferred Environment

Reef & Open habitats, typically at depths of 0-40m. Most commonly encountered by divers at the shallower end of its range.

Encounter Tips

Best approached slowly and calmly. Avoid casting shadows directly over the animal. Neutral buoyancy and patience increase encounter success significantly.

Sunset Cup Coral species card

Biology

Behaviour & Diet

Feeding Strategy

A solitary, azooxanthellate coral that feeds entirely by capturing zooplankton with its brightly coloured tentacles. Most active at night when polyps fully expand their orange and yellow tentacle crown.

Nocturnal predator

Reproduction

A gonochoric species that broods larvae internally. Released planulae settle on nearby shaded surfaces, which is why colonies often cluster on cave ceilings and overhangs.

Internal brooding

Behaviour & Defence

The hard calcium carbonate cup (corallite) protects the polyp when retracted. Preference for shaded, sheltered microhabitats such as cave walls and overhangs reduces exposure to wave action and grazers.

Skeletal armour

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Where to Encounter in Malta

The following dive sites offer strong habitat match for Leptopsammia pruvoti. All are accessible on a guided dive with diveshack.

5-30m
North Malta

Cirkewwa

Rocky reef with caves, arches and ledges hosting a rich diversity of reef species.

View dive site ›
5-50m
Gozo

Blue Hole

One of the Med's most famous reef dive sites. Rocky walls and archways covered in life.

View dive site ›
18-36m
South Malta

Um El Faroud

The wreck lies on a sandy bottom surrounded by rocky reef -- a diverse habitat attracting reef species.

View dive site ›
IUCN Red List Least Concern

Conservation Status

This species is assessed as Least Concern on the IUCN Red List. Mediterranean populations face ongoing pressure from fishing activity, habitat degradation, and climate-driven changes to prey availability.

Source: iNaturalist Guide #888
by Lesley Clements (CC BY-SA)
diveshack Mediterranean Marine Life guide