Scalaronoba costata Powell, 1927 Height 0.5mm Marine, Native - Endemic Middlesex Bank, Three Kings Islands, north-eastern and south-western North Island, and southern South Island, from 0-805m |
Scalaronoba secunda Powell, 1940 Height 0.8mm, Width 0.45mm Marine, Native - Endemic North-eastern and south-western North Island and far northern South Island, from 13-134m |