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Fossil Island wyverns icon

Long-tailed Wyverns are Slayer monsters that require a Slayer level of 66 in order to be harmed. They reside in the Wyvern Cave on Fossil Island. Like other Wyverns, they require an elemental, mind, dragonfire or ancient wyvern shield to be equipped in order to be slain.

Drops

100%

Item Quantity Rarity GE market price
Wyvern bones Wyvern bones 1 Always 2,951

Weapons/Armour

Item Quantity Rarity GE market price
Adamant full helm Adamant full helm 1 Uncommon 1,865
Battlestaff Battlestaff 3–5 (noted) Uncommon 24,999–41,665
Mithril kiteshield Mithril kiteshield 1 Uncommon 1,073
Air battlestaff Air battlestaff 1 Uncommon 9,040
Adamant crossbow (u) Adamant crossbow (u) 1 Uncommon 2,012
Adamant battleaxe Adamant battleaxe 1 Uncommon 2,229
Rune pickaxe Rune pickaxe 1 Uncommon 18,889
Adamant platebody Adamant platebody 1 Uncommon 9,633
Granite longsword Granite longsword 1 Rare (1/512) 537,648
Granite boots Granite boots 1 Very rare (1/2,560) 1,700,331

Materials

Item Quantity Rarity GE market price
Pure essence Pure essence 150 (noted) Common 600
Teak logs Teak logs 35 (noted) Common 9,030
Snape grass Snape grass 10–15 (noted) Common 760–1,140
Coal Coal 25 (noted) Common 6,300
Adamantite bar Adamantite bar 1–4 (noted) Uncommon 2,103–8,412
Runite ore Runite ore 1–2 (noted) Uncommon 10,992–21,984

Runes and Ammunition

Item Quantity Rarity GE market price
Water rune Water rune 50 Common 250
Air rune Air rune 25 Common 125
Law rune Law rune 15 Common 4,110
Adamant arrow 5 Adamant arrow 38–42 Uncommon 2,356–2,604
Soul rune Soul rune 10 Uncommon 1,480
Blood rune Blood rune 15 Uncommon 4,995
Chaos rune Chaos rune 15 Uncommon 1,515
Death rune Death rune 15 Uncommon 4,290
Runite bolts 5 Runite bolts 12–29 Rare 6,012–14,529

Herbs

Item Quantity Rarity GE market price
Grimy ranarr weed Grimy ranarr weed 1 Uncommon 8,108
Grimy kwuarm Grimy kwuarm 2 (noted) Uncommon 3,150
Grimy cadantine Grimy cadantine 2 (noted) Uncommon 2,968
Grimy lantadyme Grimy lantadyme 2 (noted) Uncommon 2,670
Grimy torstol Grimy torstol 1 Uncommon 11,396

Seeds

Item Quantity Rarity GE market price
Watermelon seed 5 Watermelon seed 15 Uncommon 4,050
Seaweed spore 5 Seaweed spore 3–12 Uncommon 2,487–9,948
Herb seed 5 Torstol seed 1 Rare 75,293
Herb seed 5 Ranarr seed 1 Rare 43,048
Yew seed 5 Yew seed 1 Rare 83,816
Mahogany seed 5 Mahogany seed 1 Rare 6,262
Magic seed 5 Magic seed 1 Rare 146,491
Spirit seed 5 Spirit seed 1 Rare Not sold

Fossils

Item Quantity Rarity GE market price
Numulite 25 Numulite 1–21 Common (18/35=51%) 17–357
Unidentified small fossil Unidentified small fossil 1 Uncommon (1/35=2.9%) Not sold
Unidentified medium fossil Unidentified medium fossil 1 Uncommon (1/70=1.4%) Not sold
Unidentified large fossil Unidentified large fossil 1 Uncommon (2/175=1.14%) Not sold
Unidentified rare fossil Unidentified rare fossil 1 Rare (1/350=0.28%) Not sold

Other

Item Quantity Rarity GE market price
Lobster Lobster 2 Common 372
Coins 1000 Coins 3,000 Common Not sold
Prayer potion(4) Prayer potion(4) 1 Uncommon 10,744
Calcite Calcite 2 Uncommon 54
Pyrophosphite Pyrophosphite 2 Uncommon 70
Clue scroll (hard) Clue scroll (hard) 1 Rare Not sold
Wyvern visage Wyvern visage 1 Very rare (1/12,000) 23,483,684

Trivia

  • They appear to use all attack styles when using melee, depending on the animation they use: slashing when they use their talons, stabbing when they jab with their tail and crushing when they bite the target.
  • Upon release, the wyvern's Defence level was 120. This was reduced to 90 in an update on 18 January 2018. This also changed its combat level from 159 to 152.
  • Upon release, Long-tailed Wyverns only dropped a maximum of 6 seaweed spores. This was increased to 12 in an update on 12 July 2018.