Noun
Same as Hatteria.
Source: Webster's dictionaryNorthern tuatara Sphenodon punctatus naturally occurs on 29 islands, and its population is estimated to be over 60,000 individuals. Source: Internet
ISBN 1-86953-264-3 A third, extinct species of Sphenodon was identified in November 1885 by William Colenso, who was sent an incomplete sub-fossil specimen from a local coal mine. Source: Internet
Whereas it is refereable to Sphenodon proper is not entirely clear, but is assumed to be closely related to tuataras. Source: Internet