Crab is a monster (combat levels 21 and 23). These are its drops on RuneSpawn, taken from the game’s drop viewer data (how to open the viewer).
OSRS Wiki Where to find this monster and how to fight it are covered on the Crab article on the Old School RuneScape Wiki. The drops below are RuneSpawn’s own.
Rates Rates are the base rates for a regular account, before any drop rate bonus. A rarity is shown only where the drop viewer gives one.
Several tables The drop viewer has more than one table under this name. Each one is listed separately below.
Level 21
100%
 | Giant crab meat | 1 | Always |
Drops
 | Oyster | 1-2 | 1 / 2 |
 | Fresh crab shell | 1 | 1 / 3 |
 | Fresh crab claw | 1 | 1 / 4 |
Level 23
100%
| Giant crab meat | 1 | Always |
Drops
| Fresh crab claw | 1 | 1 / 3 |
| Fresh crab shell | 1 | 1 / 3 |
| Oyster | 1-2 | 1 / 3 |