Arcidae
Học thuậtThân thiện
Definition
Noun: 1. A family of bivalve mollusks: Arcidae is the scientific family name for a group of saltwater clams commonly known as ark shells or ark clams. These mollusks are characterized by their boat-shaped, often heavily ribbed shells with a straight hinge line containing many small, similar teeth.
Usage Examples
- Noun:
- The biologist classified the specimen within the family Arcidae based on its shell morphology.
- Fossil records show that Arcidae have existed for millions of years.
- Several species of Arcidae are harvested for food in various coastal regions.
Advanced Usage
- In taxonomic context: The term is used formally in biological and paleontological classification. It is always capitalized when referring to the family rank.
- The study focused on the evolutionary relationships within the superfamily Arcoidea, which includes Arcidae.
Variants and Related Words
- Ark shell / Ark clam (n): The common name for any member of the family Arcidae.
- We collected several ark shells on the beach.
- Arcoid (adj): Relating to or characteristic of the superfamily (Arcoidea) that includes the Arcidae family.
- The fossil exhibited typical arcoid features.
Synonyms
- Ark shells (common name)
- Ark clams (common name)
Notes
- Arcidae is a specialized term used primarily in scientific contexts (biology, zoology, malacology, paleontology). It is not commonly used in everyday conversation.
- As a taxonomic family name, it is always treated as a singular noun (e.g., "Arcidae is a family...").
Noun
- ark shells