Curator's Corner

Museum, research, and collection updates from Dr. José H. Leal, plus Shell of the Week, which highlights a different species every Friday. Most Shells of the Week—but not all—are found in Southwest Florida.

Dr. José H. Leal serves as the Bailey-Matthews National Shell Museum’s Science Director and Curator. He received his Ph.D. in Marine Biology and Fisheries from the University of Miami and has served at the Museum since 1996. Under his leadership, the Museum was awarded its first accreditation from the American Alliance of Museums in 2010.

José H. Leal

May 20, 2022

That Dark Spot in the Eastern Oyster

If you look inside the valve (half-shell) of an Eastern Oyster, Crassostrea virginica, you'll see a large, dark spot (arrows) “engraved” on each half-shell, or valve. That spot is known as a muscle scar, and marks the place where the adductor muscle of the living animal attaches to the inside of each valve. The adductor muscles are used by bivalves such as oysters and clams to close their shells, and to keep them closed for long periods of time. The adductor muscle in oysters

José H. Leal

Jan 11, 2019

Shell of the Week: The Crested Oyster

Ostrea stentina Payraudeau, 1826 (family Ostreidae) is a 40 mm (about 1.5 inch), rarely 50 mm (about 2 inches), oyster that may be found on Southwest Florida beaches. The shell outline consists of variations of oval shapes, and the shell edge is often crenulated, or crimped. Its color is variable, sometimes grayish, often with tinges of brown. Unlike the edible, commercial Eastern Oyster, Crassostrea virginica, which may form large clusters with thousands of individuals, the

José H. Leal

Jun 6, 2014

The Eastern Oyster

Because of its ability to form reefs and to filter large amounts of water, the Eastern Oyster, Crassostrea virginica (Gmelin, 1791) is an important organism living in the bays of Southwest Florida. Young oysters, called spats, live drifting in the water until it is time to settle to bottom. At that time, spats prefer to settle on and cement themselves to existing oyster shells: this is one of the reasons why oysters form large reefs that serve as homes for a myriad other mari

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