scubaseason

Napoleon wrasse

Cheilinus undulatus

Sighting evidence at Elphinstone Reef, Marsa Alam

Napoleon wrasse

Photo: David Roche · CC BY-NC

Solitary Napoleon wrasse of impressive size — sometimes exceeding 150 cm — cruise the walls and plateau of Elphinstone, recognisable by their iconic humped forehead and thick fleshy lips. They are protogynous hermaphrodites, beginning life as females before the most dominant individuals transition to males, a biological strategy that maximises reproductive success in territorial reef environments. Endangered from spearfishing and live reef fish trade pressure, large individuals like those at Elphinstone represent an increasingly rare sight across the Indo-Pacific.

Evidence at this site

No confirmed records on file at this site

Napoleon wrasse is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites