Helmut Nisters writes,
"I think the word should named "vermivorius" as carnivor means eating meat
and herbivor means eating plants and so on (vegeterian). vorius means
eating and worm or vermi means a worm. As it might be a rarely used term I
think you can't find it any dictionary, but you can guess it.
So I think the right word will be "vermivorius" in English.
But maybe there are holes caused of worms or some sponge, as old and large
shells of Conus pulcher like to have, you should create another word. My
English is not so goot that I can give you more informations for guessing
and thinking."
 
Helmut, the general word in English for a hole made by an animal is a
"boring," and the animals are said to "bore" holes. Most borers excavate
holes to create a home, not to prey on others. In the special case of
gastropods or octopods that prey on mollusks and other animals, the
activity is called "drilling" and the holes are "drillholes." Gastropod
drillholes are generally circular to oval in outline, and cylindrical to
parabolic in overall form. Octopus drillholes tend to be rather irregular,
and in most places are much less common than gastropod drillholes. Several
groups of gastropods drill their prey, but the naticids are especially well
documented in the literature (German and English). Fossil specimens of
drilled shells are common in Mesozoic and Cenozoic rocks.
 
Andrew K. Rindsberg
Geological Survey of Alabama