Lambis_chiragra ?

Lambis (Harpago) rugosus; last two, Lambis (Harpago) arthriticus. H. rugosus differs from H. arthriticus in having a shelf - like structure in the upper part of the inner aperature, whereas H. arthriticus does not.

Addenum: H. chiragra does not have the black and white lirae in the aperature that H. rugosus has. Conversely, both H. chiragra and H. rugosus both have the shelf - like structure in the upper aperatures, being more pronounced in H. chiragra than in H. rugosus.