420 Dive Log Australasia OCTOBER 2026

The Genus Thallasoma is in a Wrasse Tribe. Wrasse in the same genus include the Hardwickes Six Bar Wrasse, several types of Fairy wrasse, two types of Moon wrasse and the stunning Ladder Wrasse. This tribe is an example of Adaptive Radiation. Closely related fish ; Common Ancestor. Ancestor

Thallasoma hardwicke, Six Bar Wrasse

Thallasoma lutescens, Intermediate phase Green Moon wrasse

Thallasoma lunare, Moon wrasse

Thallasoma trilobatum, Ladder wrasse Fish Rock

Thallasoma lutescens, Alpha Male Green Moon

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Dive Log Australasia #420 October ’26

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