Some bones show evidence of boring by the marine shipworm "Teredo". An indeterminate species of marine teredinid shipworm. However, because the wooden piles were never protected by copper sheathing they suffered from shipworm. The insulation could be eaten, for instance, by species of "Teredo" (shipworm) and "Xylophaga". These poles had been eaten by shipworm. The shipworm lives in waters with oceanic salinity. Lithoredo is a genus of shipworm native to the Abatan River in the Philippines. The case of the shipworm is not just the home of the black slimy worm. The initial nickname of the Teredo tunneling protocol was "Shipworm". The specific name derives from the Latin terms "teredo" (shipworm) and "incola" (dweller). The bottom was sheathed in copper to protect the vessel from shipworm. These included the copper sheathing of her hull to protect the timbers from shipworm. A layer of Muntz metal sheathing covered the hull to protect the wood from shipworm. Shipworm species comprise several genera, of which "Teredo" is the most commonly mentioned.