Depth
Smittina · Marine Life

Smittina Cervicornis

Smittina cervicornis

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
Genus Smittina
Species cervicornis

Bryozoan

Identification & Biology

  • IdentificationA bryozoan colony forming branching, antler-like structures. Pale cream to ivory white, with a delicate, lace-like surface texture. More slender and paler than the false coral.
  • SizeColony height up to 10 cm. Branches are slender and branching.
  • Social HabitColonial. Grows on hard substrates in shaded environments. Fragile and easily broken.
  • HabitatRocky walls, overhangs, and cave environments with good water flow.
  • Depth10 to 100 m. Most common on deeper, shaded reefs.
  • Feeds OnPlankton, bacteria, and suspended organic particles filtered by the zooid lophophores.
  • DistributionMediterranean Sea and adjacent eastern Atlantic. Present in Maltese waters.
  • DescriptionSmittina cervicornis forms delicate, ivory-coloured branching colonies on deeper Mediterranean walls. Its antler-like growth form is distinctive and adds structural complexity to the reef, providing microhabitat for many small invertebrates. Like all bryozoans, the colony is composed of thousands of genetically identical individuals (zooids), each with its own feeding tentacles.

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

Loading…

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.

Smittina Cervicornis species card

Biology

Behaviour & Diet

Feeding Strategy

Zooids filter-feed by extending lophophores with ciliated tentacles that create micro-currents to trap phytoplankton, bacteria and fine detritus from the water column.

Filter feeder

Reproduction

Broods embryos in ovicells attached to the colony surface. Released larvae are short-lived and settle nearby, contributing to localised patches. Asexual budding expands colony size.

Brooding

Behaviour & Defence

The heavily calcified skeleton makes the colony rigid and difficult for predators to consume. Avicularia (modified zooids resembling tiny jaws) snap at small organisms that attempt to settle on the colony.

Calcified skeleton

Dive with diveshack

Where to Encounter in Malta

The following dive sites offer strong habitat match for Smittina cervicornis. 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