Thalassohelix antipoda (Hombron & Jacquinot, 1841) Width 7mm, Height 4mm Land, Native - Endemic Auckland Islands L. |
Thalassohelix chathamensis (Suter, 1909) Width 7mm, Height 4.5mm Land, Native - Endemic Chatham Islands L. |
Thalassohelix igniflua (Reeve, 1852) Width 15.5mm, Height 8.8mm Land, Native - Endemic Southern half of South Island L.S. |
Thalassohelix laingi (Suter, 1905) Width 16.8mm, Height 9mm Land, Native - Endemic South Island. Southland L.S. |
Thalassohelix zelandiae (Gray, 1843) Width 11mm, Height 8.3mm Land, Native - Endemic North, South and Chatham Islands L.N.S. |