Schizoglossa major was a species of large predatory, air-breathing, land slug, a carnivorous terrestrial pulmonate gastropod mollusc in the family Rhytididae, which also contains the genera Powelliphanta and Rhytida.
This species is now extinct.
Like others in this genus, the slug had a shell which was quite small compared to its (hypothetical) body size.
This snail was endemic
to the North Island
of New Zealand
The shells of this species are found with moa
bones at Pukemiro
in the Waikato
area of the North Island.
The shell is very much larger than Schizoglossa worthyae
, and more roundly ovate.
The shell length is up to 36 mm, a width of 26 mm, and a thickness of 8 mm.
- Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1