Prawns vs Shrimp: What’s the Difference?
Prawns and shrimp are often confused. In fact, the terms are used interchangeably in fishing, farming and culinary contexts.
Prawns have three pairs of claw-like legs, while shrimp have only one pair. Prawns also have longer legs than shrimp. Another main difference between prawns and shrimp is the way they reproduce.
In the UK, Australia, New Zealand and Ireland, “prawn” is the general term used to describe both true prawns and shrimp.
In North America, the term “shrimp” is used much more frequently, while the word “prawn” is most often used to describe larger species or those fished from fresh water.
Source: Healthline, March 2018