Release date 7 November 2005 (Update)
Members? Yes
Combat level 76
Suspicious water:
Always drops Nothing
Suspicious water:
A sneaky, spiny, subterranean sea-dwelling scamp.
Combat info
Hitpoints 100
Aggressive Yes
Poisonous Yes (6)
Max hit 10
Weakness Ranged
Attack Styles
Ranged, Ranged magic
Suspicious water:
Slayer icon Slayer info
Not assigned
Combat icon Combat stats
Attack icon Strength icon Defence icon Magic icon Ranged icon
10 10 10 1 2
Attack icon Aggressive stats
White dagger White scimitar White warhammer Magic icon Ranged icon
+0 +0 +0 +0 +0
Defence icon Defensive stats
White dagger White scimitar White warhammer Magic icon Ranged icon
+100 +100 +100 +50 +50
Other bonuses Immunities
Attack icon
Strength icon
Ranged Strength icon
Magic Damage icon
Poison hitsplat
Venom hitsplat
+0 +0 +0 +0% Not immune Not immune
Attack speed
Monster attack speed 6

Spinolyps are small, Dagannoth-like creatures found in the deepest sublevel of Waterbirth Island Dungeon in the same room as the Dagannoth Kings. It is recommended to bring some form of antipoison as they are able to poison. Their Magic attack takes the appearance of Water Strike and is considered Ranged magic as it rolls against the player's Ranged defence.[1] As such, it will always be more beneficial to use a guthan's platebody over a karil's leathertop, for example. A successful hit by their Magic attack also drains 1 prayer point; this prayer drain effect is halved when using a spectral spirit shield.[2] Their ranged attack is poisonous and resembles the one used by Ranged-using Dagannoth. Each attack can hit up to 10.

Spinolyps will turn into level 34 Suspicious water on occasion, and become non-attackable. If the water is adjacent to a player it may deal a rapid inaccurate melee attack. After a while they will submerge again as Spinolyps. If they somehow die as Suspicious water (e.g. venom, projectile fired before transforming), then bones will be dropped.

They never become tolerant to the player.


  1. Jagex. Mod Ash's Twitter account. 3 September 2015. Mod Ash: "Both attacks roll the ranged accuracy against your ranged defence, but one deals magic damage and drains prayer."
  2. Jagex. Mod Ash's Twitter account. 16 February 2017. Mod Ash: "[Does the spectral buff include the 1 pray drain from spinolyps?] It does, but it randomly rounds up and down so that on average you get about 50% the drain from before."