Phragmomphalina alabida (B.A. Marshall, 1979) Width 11.5mm, Height 8.5mm Marine, Native - Non-endemic Southern Norfolk Ridge and northern New Zealand. NW of Three Kings Islands, Cavalli Seamount and Kermadec Ridge, from 395-1008m |
Phragmomphalina diadema B.A. Marshall, 1999 Width 13.5mm Marine, Native - Endemic Wanganella Bank, southern Norfolk Ridge, from 514-757m |
Phragmomphalina tenuiseptum (B.A. Marshall, 1999) Width 17mm Marine, Native - Endemic N Three Kings Rise, West Norfolk Ridge and Kermadec Ridge, from 350-1268m |