Rakiurapyrgus cresswelli (Climo, 1974) Height 2.5mm Freshwater, Native - Endemic, In springs and seepage Stewart Island Fw. |
Rakiurapyrgus micula Haase, 2008 Freshwater, Found in moss under waterfall. Similar in shape to R. cresswelli, however, it is much smaller and has a proportionally larger aperture Stewart Island Fw. |