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 Summary
 Physical Description
 Ecology
 Life History & Behaviour
 Anatomy & Physiology
 Evolution & Systematics
 Biogeographic Distribution
 Conservation & Threats
 References & Links | | Biogeographic Distribution T. gratilla are found in waters in the indo-west pacific region, as well as south pacific islands such as Norfolk to the Hawaiian islands (Lawrence & Agatsuma 2007).  Mainly found in Australian waters, various members of the T. gratilla subspecies are found in varying geographic regions. Due to their temperature sensitive nature they are not found in northern or southern waters near to poles (Lawrence & Agatsuma 2007).
 
  
 Distribution of T. gratilla adapted from the Atlas of Living Australia 2014, blue dots indicate populations of the species (http://bie.ala.org.au)
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