Spinolyps are small, dagannoth-like creatures found in the deepest sublevel of Waterbirth Island Dungeon. They are not often killed as they attack with both magic and ranged, causing players to switch prayers often. Their ranged attacks can also cause poison, which starts at 68 life points. Their magic attacks can drain prayer by 10 if they hit. They mainly serve as a nuisance, similar to wild dogs in the Brimhaven Dungeon.
Spinolyps will turn into level 20 suspicious water when dealt enough damage. If the water gets close to you, it will deal a rapid, inaccurate melee attack.
It isn't recommended to use protection prayers against spinolyps the whole time because doing so will consume a large amount of prayer potions and a bank is quite a big distance away. Instead, it is advised to bring your best armour against ranged attacks, as the magic attacks are less accurate than the ranged.