|New Zealand Half Crab|
|Common Name||Elongated Porcelain Crab and Half Crab|
|Range||New Zealand but has also been introduced to Tasmania and Victoria, Australia.|
The New zealand half crab, elongated porcelain crab, or half crab, (Petrolisthes elongatus), is a species of porcelain crab native to New Zealand.
The New zealand half crab is native to New Zealand but has also been introduced to Tasmania and Victoria, Australia.
Its carapace width is up to 18 millimetres (0.71 in).