Corpse Spider

The Corpse Spider is a monster found in the Lumbridge Catacombs Dungeon, accessible after The Blood Pact quest. They were created by Dragith Nurn, a now undead necromancer, during his many hideous experiments with corpses. Because they used to be humans, they have a human face on their back. Oddly enough, it's the only spider to drop bones.

100% drop

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Armour and weaponry

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Ranged related

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Magic and runes

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Other drops

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Trivia

 * Though real spiders normally have no bones, this type of spider drops them. The reason they drop bones may be because they used to be humans.
 * They strongly resemble skulltula from the Legend of Zelda game series, except the skull is on the abdomen and not the cephalothorax.

Corpse spider Corpse spider