Status
Rare. CITES Appendix 1
Population
Possibly exceeds 100,000
Threats
Introduced mammals, particularly rats. Programs for conserving endangered
birds on these islands is also a problem. It has recently been recognised
that there are two distinct species of Tuatara. Unfortunately, legislation
does not acknowledge that Sphenodon is not a single species.
Conservation
Maintaining rat free habitats. Recognition that different species exist
and need separate protection.
Size
Males upto 60cm; females upto 45cm
Weight
Males upto 1 kg; females 500g
Special features
A burrowing reptile, it has a life expectancy which is likely to exceed
100 years. It is the only surviving genus of a reptilian group flourishing
in the Triassic period.
File last modified Thursday, October 3, 1996