4100 Northpoint Blvd.
Baltimore, Maryland 21222

Call For Reservations: 410.477.1975

Are Crabs Considered to Be Shellfish?

crabs shellfish costas inn baltimore md maryland

Here are the key things to remember when looking at the difference between crabs and other crustaceans and shellfish themselves.

While this might be controversial, shellfish and crustaceans are actually different species. In fact, contrary to popular belief, there are some key differences between the two. The reality is, some key differences can help you understand how to differentiate shellfish from crustaceans. Here are the key things to remember when looking at the difference between crabs and other crustaceans and shellfish themselves.

Understanding Shellfish Properly

In simplest terms, shellfish typically live in the water and also have a shell. Shellfish can then be divided into two specific categories, including crustaceans and mollusks. Understanding the differences between the two can help people better understand the difference between all these underwater creatures. For the most part, shellfish are traditionally characterized as having very hard outer shells. Mollusks, however, are defined by their soft outer shells. Ultimately, both crabs and scallops are considered and classified as shellfish. But, just crabs are considered and classified as crustaceans. 

Grilling Shellfish

One of the most popular ways to prepare shellfish included using the grill to maximize the taste and flavor. A great way to prepare lobster is on the grill. The reality is, using kitchen shears to cut your lobster in half (for example) is the optimal way to enjoy the specific crustacean effectively and deliciously.

Baking Shellfish In The Oven

Another way to thoroughly maximize your shellfish’s flavor is to bake it in the oven. Doing so when you don’t have any grilling materials is a great way to enjoy any type of shellfish. The reality is, both crustaceans and mollusks are generally enjoyed in the oven. 

Bottom Line

Knowing the best ways to prepare shellfish is the most important thing to understand. Whether grilling or baking, maximizing the flavor of your shellfish will allow you to thoroughly enjoy the meal and pass along family recipes for years to come. 


Costas Inn has been an area icon, slinging the best crabs in Baltimore since 1971. So here’s to 50 years, and cheers to 50 more! 

You may recognize our restaurant recently featured on the Food Network with Michael Symon on Burgers, Brew, and ‘Que! We were also voted the 2015 #1 Baltimore Seafood Restaurant by USA Today and #1 Crab Restaurant 2014 in the Baltimore Business Journal. You may have also spotted Costas Inn during one of our nine appearances on the Today Show or heard one of our many interviews on WJZ TV Channel 13 with Ron Matz and Marty Bass.

You can enjoy our famous crab cakes in-house or order them online for any time eating. We also provide some of the best seafood catering in the Baltimore area! Of course, you can also get your fill from Costas even when you’re not in our dining room: follow us on Facebook, Twitter, Pinterest, and YouTube!


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Taste a Baltimore Tradition!

You can now order our famous and award winning Maryland crabcakes online and we'll ship them fresh to your door. We will gladly ship them nationwide. Crabs, crab cakes, party packages, clothing, seasonings, and more available to order online now!

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  • Online Gift Card

    Online gift cards make a great gift that can be redeemed for any products available at costasinn.com only. Not redeemable at the restaurant.

  • More Information About Crabcake Delivery: What Are Some of Our House Policies?

    Costas Inn Gift Card

    A 10.95 charge will be applied for next day delivery on Gift Certificates. If you desire regular shipping via USPS, please call Pete at 410-477-1975.  

    $25.00 - $100.00 buy
  • 5 oz. Maryland Jumbo Lump Crabcake

    One 5 oz. Maryland Jumbo Lump Crab Cake  Garnish and roll not included

    $20 buy
  • 10 Pack 5 oz. Jumbo Lump Crab Cakes

    A Costas tradition since 1971: 5 ounces of all Jumbo Lump crabmeat made with Costas seafood spices. A local favorite!

    $190 buy
  • What Makes a Maryland Crab So Special?

    8 oz. Maryland Jumbo Lump Crab Cake

    One 8 oz. Maryland Jumbo Lump Crab Cake.  Garnish not included

    $29 buy
Costas Inn
5 stars - based on 699 reviews
4100 Northpoint Blvd. Baltimore , Maryland
410-477-1975 URL of Map Categories: Seafood Price Range: $$ Takes Reservations: yes
Costas Inn
5 stars - based on 695 reviews
4100 North Point Boulevard Baltimore , Maryland 21222
(410) 477-1975 URL of Map Categories: Seafood & Crabs Price Range: $$ Takes Reservations: yes