Naticidae

They will also attack almost any other shelled mollusk they encounter in the sand, such as scaphopods and other gastropods, including other moon snails.

[1] Additionally, Conuber sordidum was shown to prey on the soldier crab Mictyris longicarpus (Crustacea) by drilling predation.

[3] The moon snail envelops the prey and then bores a hole through the shell using its radula and an acid secretion.

The hole in the shell, which has a "countersunk" appearance with chamfered edges, and which varies in size according to the species, is a characteristic sign of moon snail predation.

In the breeding season, the female moon snail lays a rather stiff egg mass which includes sand and mucus.

Divaricella quadrisulcata showing Naticid predation holes
50-second video of snails (most likely Natica chemnitzi and Cerithium muscarum ) feeding on the sea floor in the Gulf of California , Puerto Peñasco , Mexico .
Naticid boring in Stewartia from the Calvert Formation, Zone 10, Calvert Co., MD ( Miocene ).
A moon snail ( Naticarius orientalis ) on the prowl at night. Found on the north coast of East Timor .
Notocochlis gualteriana
A fossil shell of Naticarius millepunctatus from the Nicosia Formation, Pliocene , Cyprus