Argobuccinum tumidum is a species of large sea snail, a marine gastropod mollusc in the family Ranellidae, the tritons.

Shell description

The large swollen shell of this species has prominent varices.

References

• Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1

es:Argobuccinum tumidum vi:Argobuccinum tumidum