A Deep Sea Scale is an item that evolves Clamperl into Gorebyss if Clamperl is traded while holding it. It also doubles Clamperl's Special Defense while held.
- RSE: Give Scanner to Captain Stern in Slateport City Harbor.
- DPPt: Held by wild Chinchou, Lanturn, and Relicanth.
- HGSS: Route 20 (Dowsing MCHN), held by wild Chinchou, Lanturn, and Relicanth.
- PBR: Buy (14,400 Poké Coupons).
- BW: Route 13, held by wild Blue-Striped Basculin, Chinchou, Lanturn, and Relicanth.
- B2W2: Black City (buy)
- XY: To the far left of Azure Bay.