Stilla anomala Powell, 1955 Height 1.6mm, Width 0.9mm Marine, Endemic Otago, Southy Island, N of Auckland Islands and off Snares Islands FAnE. |
Stilla delicatula Powell, 1927 Height 1.75mm, Width 0.9mm Marine, Endemic SW Otago to Stewart Island, and off Auckland Islands FAnE. |
Stilla flexicostata (Suter, 1899) Height 2.25mm, Width 1.25mm Marine, Endemic Foveaux Strait, Stewart, Snares and Auckland Island FAnE. |
Stilla paucicostata Powell, 1937 Height 1.7mm, Width 0.95mm Marine, Endemic Off Three Kings Islands AE. |