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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 2,185

Weapons/Armour

Item Quantity Rarity GE market price
Adamant full helm Adamant full helm 1 Uncommon 1,888
Battlestaff Battlestaff 3–5 (noted) Uncommon 25,899–43,165
Mithril kiteshield Mithril kiteshield 1 Uncommon 1,081
Air battlestaff Air battlestaff 1 Uncommon 9,065
Adamant crossbow (u) Adamant crossbow (u) 1 Uncommon 1,285
Adamant battleaxe Adamant battleaxe 1 Uncommon 2,229
Rune pickaxe Rune pickaxe 1 Uncommon 18,843
Adamant platebody Adamant platebody 1 Uncommon 9,611
Granite longsword Granite longsword 1 Rare (1/512) 257,369
Granite boots Granite boots 1 Very rare (1/2,560) 1,814,031

Materials

Item Quantity Rarity GE market price
Pure essence Pure essence 150 (noted) Common 600
Teak logs Teak logs 35 (noted) Common 9,695
Snape grass Snape grass 10–15 (noted) Common 580–870
Coal Coal 25 (noted) Common 4,450
Adamantite bar Adamantite bar 1–4 (noted) Uncommon 2,071–8,284
Runite ore Runite ore 1–2 (noted) Uncommon 11,190–22,380

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 3,105
Adamant arrow 5 Adamant arrow 38–42 Uncommon 2,128–2,352
Soul rune Soul rune 10 Uncommon 1,470
Blood rune Blood rune 15 Uncommon 4,020
Chaos rune Chaos rune 15 Uncommon 1,500
Death rune Death rune 15 Uncommon 3,330
Runite bolts 5 Runite bolts 12–29 Rare 4,368–10,556

Herbs

Item Quantity Rarity GE market price
Grimy ranarr weed Grimy ranarr weed 1 Uncommon 7,550
Grimy kwuarm Grimy kwuarm 2 (noted) Uncommon 2,206
Grimy cadantine Grimy cadantine 2 (noted) Uncommon 2,518
Grimy lantadyme Grimy lantadyme 2 (noted) Uncommon 2,124
Grimy torstol Grimy torstol 1 Uncommon 8,014

Seeds

Item Quantity Rarity GE market price
Watermelon seed 5 Watermelon seed 15 Uncommon 2,490
Seaweed spore 5 Seaweed spore 3–12 Uncommon 2,418–9,672
Herb seed 5 Torstol seed 1 Rare 57,664
Herb seed 5 Ranarr seed 1 Rare 37,459
Yew seed 5 Yew seed 1 Rare 96,856
Mahogany seed 5 Mahogany seed 1 Rare 4,894
Magic seed 5 Magic seed 1 Rare 155,521
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%) 15–315
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 340
Coins 1000 Coins 3,000 Common Not sold
Prayer potion(4) Prayer potion(4) 1 Uncommon 9,858
Calcite Calcite 2 Uncommon 104
Pyrophosphite Pyrophosphite 2 Uncommon 158
Clue scroll (hard) Clue scroll (hard) 1 Rare Not sold
Wyvern visage Wyvern visage 1 Very rare (1/12,000) 23,523,241

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.