What's the Difference Between a Shrimp and a Prawn?

What's the Difference Between a Shrimp and a Prawn?

Kathryn Hill
Aug 13, 2009

One of my favorite places to eat in San Francisco is Swan Oyster Depot. I usually go for the combination seafood salad, which is a mixture of delectable Dungeness crab, shrimp, and prawns served on lettuce with a Louis dressing. The shrimp in this salad are very tiny, like the type you would use in a shrimp salad, and the prawns are shrimp-like, but much larger.

I always thought "prawn" was the British English word for the animal that Americans call a "shrimp," and although that is the case, there is also actually a scientific difference between a shrimp and a prawn.

While very similar in appearance, shrimp and prawns are two different species, with different gill structures, different habitats, and a difference in taste.

Shrimp come from both fresh and salt water and can live in both cold and warm waters; if they came from cold waters, then they will be smaller in size. There are more saltwater than freshwater species of shrimp.

Prawns come from fresh water, and are much larger and meatier than shrimp, like a langoustine. Their meat is much sweeter than those of shrimp. Prawns also have bigger pincers and longer legs.

And there you have it!

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(Image: Legal Seafoods)

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