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Christmas Wrasse
Species IUCN · Least Concern (LC)

Christmas Wrasse

Thalassoma trilobatum, (Lacepède, 1801)

marine

About Christmas Wrasse

The Christmas wrasse (Thalassoma trilobatum), also known as the ladder wrasse, green-barred wrasse or green-blocked wrasse, is a species of ray-finned fish, a wrasse from the family Labridae which is native to the Indian Ocean and the western Pacific Ocean. It inhabits shallow reefs at depths from the surface to 10 m (33 ft). It is of minor importance to local commercial fisheries and can be found in the aquarium trade.

Appearance

The Christmas wrasse has 8 spines and 13 soft rays in its dorsal fin and 3 spines and 11 soft rays in its anal fin. There are normally 16 rays in the pectoral fins and there are 25 scales in the lateral line. In the initial phase, or females, the caudal fin may be slightly rounded or truncate while in the terminal phase males it can be truncate or a little double emarginated. The females are greenish grey to pale green in body colour with 5–6 dark blotches on the back and a pair of dark, not all that well defined stripes on the flank. Most of the scales on a female's body have a dark vertical line. There is also a diagonal or C-shaped pink to dark red marking below the front of the eye.

Habitat

The Christmas wrasse has a wide Indo-Pacific distribution, occurring on the east coast of Africa from Somalia to South Africa, although there are no records from Madagascar it occurs through the Indian Ocean and east into the Pacific as far as Pitcairn Island. Its Pacific range extends north to the Ryukyu Islands and south to northern New South Wales.

Humans & conservation

The Christmas wrasse is a commercially important species in the aquarium trade, although it grows too large for most home aquaria. It is only of minor and local interest to artisanal and subsistence fisheries.

Where to see it

No dive sites list Christmas Wrasse yet. Explore the map to find sites near you.