Calliostoma bairdii is a species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of sea snail

Snail

Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

 with an operculum

Operculum (gastropod)

The operculum, meaning little lid, is a corneous or calcareous anatomical structure which exists in many groups of sea snails and freshwater snails, and also in a few groups of land snails...

, a marine

Marine (ocean)

Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod mollusk in the family Calliostomatidae

Calliostomatidae

Calliostomatidae is a family of sea snails within the superfamily Trochoidea and the clade Vetigastropoda.- Description :The Calliostomatidae are unusually diverse. They are characterized by a stepped spire and a pointy aperture. They may possess or lack an umbilicus. The columella is sometimes...

, the calliostoma top snails.

Distribution

North West Atlantic. Range covers both subprovinces of Acadian

Acadian

The Acadians are the descendants of the 17th-century French colonists who settled in Acadia . Acadia was a colony of New France...

 and Virginian

Virginian

Virginian is an adjective used to describe something as being of, from, or related to the Commonwealth of Virginia in the United States.Virginian may also refer to:-Automobiles:...

. Range: 41.67°N to 34.65°N; 75.58°W to 65.77°W. Distribution: USA: Massachusetts, New Jersey, Maryland, Virginia, North Carolina; 41.67°N to 34.65°N; 75.58°W to 65.77°W.