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Rock lobster
Rock lobster
Release date 1 August 2005 (Update)
Members? Yes
Combat level 127
Always drops None
Examine
Disguised: A Rock.
Normal: It wasn't a rock... It was a rock lobster!
Combat info
Hitpoints 150
Aggressive Yes
Poisonous No
Max hit 15
Weakness Magic, crush
Attack Styles
Melee (crush)
Slayer icon Slayer info
Not assigned
Combat icon Combat stats
Attack icon Strength icon Defence icon Magic icon Ranged icon
100 100 100 1 1
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 +50 +50 +150
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 8

Rock lobsters are found in the Waterbirth Island Dungeon's fifth sub-level, in Room 16. They are similar to Giant rock crabs in the fact that they are initially disguised as large rocks, but they will attack the player as they approach. They have very high Defence (though they are weak to Magic attacks) and can hit up to 15 Hitpoints, but rarely hit over 11 Hitpoints. Their attack speed is two bars faster than the Abyssal whip (as fast as darts on Rapid), making them incredibly dangerous.

Drops

Runes

Item Quantity Rarity GE market price
Earth rune Earth rune 5 Common 25
Water rune Water rune 9 Common 45
Pure essence Pure essence 4–8 Common 16–32

Talismans

Item Quantity Rarity GE market price
Fire talisman Fire talisman 1 Uncommon 1,921
Air talisman Air talisman 1 Uncommon 59
Cosmic talisman Cosmic talisman 1 Uncommon 1,108
Body talisman Body talisman 1 Uncommon 763
Water talisman Water talisman 1 Uncommon 181

Herbs

Item Quantity Rarity GE market price
Guam leaf Guam leaf 1 Uncommon 16
Marrentill Marrentill 1 Uncommon 24
Tarromin Tarromin 1 Uncommon 147
Harralander Harralander 1 Uncommon 858
Ranarr weed Ranarr weed 1 Uncommon 7,831
Irit leaf Irit leaf 1 Uncommon 908
Avantoe Avantoe 1 Uncommon 2,262
Kwuarm Kwuarm 1 Uncommon 1,806
Cadantine Cadantine 1 Uncommon 1,577
Lantadyme Lantadyme 1 Uncommon 1,636
Dwarf weed Dwarf weed 1 Uncommon 1,074

Equipment

Item Quantity Rarity GE market price
Steel arrow 5 Steel arrow 4–7 Common 168–294
Iron arrow 5 Iron arrow 2–17 Common 18–153
Fremennik brown shirt Fremennik brown shirt 1 Rare 268
Fremennik blade Fremennik blade 1 Rare Not sold

Seeds

Item Quantity Rarity GE market price
Onion seed 5 Onion seed 1 Uncommon 1
Potato seed 5 Potato seed 1 Uncommon 1
Cabbage seed 5 Cabbage seed 1 Uncommon 1
Tomato seed 5 Tomato seed 1 Uncommon 1
Watermelon seed 5 Watermelon seed 1–3 Very rare 358–1,074

Other

Item Quantity Rarity GE market price
Seaweed Seaweed 4 Common 212
Edible seaweed Edible seaweed 4 Common 136
Raw lobster Raw lobster 1 Common 299
Lobster pot Lobster pot 1 Common 147
Tinderbox Tinderbox 1 Common 108
Soda ash Soda ash 1 Uncommon 88
Coins 250 Coins 355 Uncommon Not sold
Snape grass Snape grass 1 Uncommon 43
Clue scroll (medium) Clue scroll (medium) 1 Rare Not sold

Gem drop table

In addition to the drops above, this monster has access to the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire Uncut sapphire 1 Rare 970
Uncut emerald Uncut emerald 1 Rare 921
Uncut ruby Uncut ruby 1 Rare 1,736
Nature talisman Nature talisman 1 Very rare 1,342
Uncut diamond Uncut diamond 1 Very rare 3,769
Rune javelin Rune javelin 5 Very rare 755
Loop half of key Loop half of key 1 Very rare 9,183
Tooth half of key Tooth half of key 1 Very rare 13,691
Rune spear Rune spear 1 Very rare 12,040
Shield left half Shield left half 1 Very rare 65,395
Dragon spear Dragon spear 1 Very rare 37,187


Trivia

  • This monster's name as well as its examine text is a reference to the B-52's song "Rock Lobster". The lyrics to the chorus include the line "It wasn't a rock, was a rock lobster".