No common name

Didemnum commune

ORDER

Enterogona

REPRODUCTIVE BIOLOGY

Larvae found in the colony from April to October.

CONSERVATION STATUS Not listed by the IUCN.

SIGNIFICANCE TO HUMANS None known. ♦

FAMILY Didemnidae

TAXONOMY

Leptoclinum commune Delia Valle, 1877, Naples Gulf, Italy.

OTHER COMMON NAMES

None known.

PHYSICAL CHARACTERISTICS

Colonial species with small (up to 1.2 in, or 3 cm, in diameter), red, encrusting colonies. Colony contains numerous minute calcareous spicules and feels hard to the touch. Very small zooids are completely embedded in the common test; numerous small openings of branchial siphons and several larger cloacal openings are seen on the colony surface.

DISTRIBUTION

European coasts of the Mediterranean Sea. HABITAT

Rocky bottoms at depths from 0 to 230 ft (0-70 m). Common below intertidal zone, crevices, and caves exposed to strong wave actions.

BEHAVIOR

Sessile, attached, immobile species.

FEEDING ECOLOGY AND DIET Filter feeder.

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