What is a rich cream soup usually made with fish or shellfish?

A rich cream soup usually made with fish or shellfish is called Bisque.

Bisque is a creamy soup that is typically made with a base of shellfish or fish stock, often thickened with cream or milk.

While bisque is traditionally made with shellfish, it can be made with fish like lobster, crab, shrimp, or even crayfish.

Some popular examples of bisques include:

* Lobster bisque: This is a classic bisque made with lobster stock, lobster meat, cream, and often brandy.

* Crab bisque: This bisque is made with crab stock, crab meat, cream, and sometimes sherry.

* Shrimp bisque: This bisque is made with shrimp stock, shrimp meat, cream, and often tomatoes.

* Crayfish bisque: This bisque is made with crayfish stock, crayfish meat, cream, and sometimes cayenne pepper.

Bisque is known for its smooth, creamy texture and rich, flavorful broth. It's often served as a starter or light lunch and is a popular choice for special occasions.