Antiguraleus rishworthiAntiguraleus rishworthi is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.A.G. Beu adopted Probebela for all the southern hemisphere taxa previously referred to Antiguraleus.DescriptionThe length of the shell attains, its diameter.DistributionThis extinct marine species occurred in the North Island, New Zealand.