Monodilepas diemenensisMonodilepas diemenensis is species of small sea snail, a keyhole limpet, a marine gastropod mollusc in the family Fissurellidae, the keyhole limpets and slit limpets.This species is found at North Island, New Zealand.Original descriptionMonodilepas diemenensis was originally discovered and described by Harold John Finlay in 1930. Finlay's original text reads as follows: