Tritaxis australis
Broennimann and Whitaker, 1984
identified by scientist   
Quaternary
Fiji and off

Tritaxis challengeri
(Hedley, Hurdle & Burdett, 1964)
identified by scientist   
Quaternary
Caribbean

Tritaxis conica
(Parker and Jones, 1865)
identified by scientist   
Quaternary
Fiji and off

Tritaxis fusca
(Williamson, 1858)
identified by scientist   
Quaternary
Canary Islands

Tritaxis primitiva
(Broennimann and Whittaker, 1952)
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea