Eatoniellidae: Crassitoniella erratica (May, 1913) (‘erratic eaton-shell’)

Synonym(s): erratica May, 1913 aurantiocincta May, 1916.

Typical shell-length 2.0 mm. Lives subtidally and offshore on sand and mud Native. Endemic to southeastern and southwestern Australia (QLD, NSW, TAS, VIC, SA and WA).