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Jansen's Wrasse
Thalassoma jansenii
Jansen's wrasse (Thalassoma jansenii) is a species of wrasse native to the Indian Ocean and the western Pacific Ocean. It is a reef inhabitant, preferring rocky areas, and can be found at depths from 1 to 15 m (3.3 to 49.2 ft). This species can grow to 20 cm (7.9 in) in total length. Like many other coral reef wrasses, this species swims actively over the reef using solely their pectoral fins for thrust (known as labriform locomotion). It can...
From the article Jansen's wrasse on Wikipedia (CC BY-SA), quoted section by section
Description
In its initial phase Jansen's wrasse is white with three black bars, the first of which is on upper half of head and anterior body and contains a yellow strip on the margin of the gill cover. The second band goes across dorsal fin and ends at the anus while the third covers most of the body and the rear parts of dorsal and anal fins. The terminal phase males have yellow between black bars. The pectoral fins have a bluish colour. This species can grow to 20 cm (7.9 in) in total length. It has 8 spines and 13 soft rays in its dorsal fin and 3 spines and 11 soft rays in its anal fin.
Range & habitat
Jansen's wrasse is found in the Indian Ocean and the Pacific Ocean from the Maldiives to Fiji, north to Japan and south to Shark Bay, Western Australia.
Wikipedia: “Distribution”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Thalassoma jansenii in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 113978.