Monodilepas diemenensis is species of small sea snail, a keyhole limpet, a marine gastropod mollusc in the family Fissurellidae, the keyhole limpets and slit limpets.
Original description
Monodilepas diemenensis was originally discovered and described by Harold John Finlay in 1930. Finlay's original text (the type description) reads as follows: ==References==