Antiguraleus otagoensisAntiguraleus otagoensis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.DescriptionThe length of the shell attains 8 mm, its diameter 4 mm. This species is a non-broadcast spawner and its life cycle does not include a trocophore stage.DistributionThis species occurs in the North-western South Island and Eastern Island off the Cook Strait to Otago and off Chatham Islands, New Zealand.