Definition

1. Noun:
   • A taxonomic family of crustaceans: Portunidae is the scientific family name for a group of decapod crustaceans commonly known as swimming crabs. Members of this family are characterized by their flattened, paddle-like rear legs adapted for swimming.

Usage Examples

• Noun:
  • The blue crab, Callinectes sapidus, is a well-known species within the family Portunidae.
  • Marine biologists are studying the diversity of the family Portunidae in coastal ecosystems.

Advanced Usage

• In taxonomic classification: The term is used in formal biological and zoological contexts to categorize and discuss a specific clade of crabs.
  • The specimen was keyed out and definitively placed in the family Portunidae.

Variants and Related Words

• Portunid (noun/adjective): A member of the family Portunidae; relating to or characteristic of this family.
  • The portunid crabs were observed in the tidal pool.
• Swimming crab (noun): The common name for crabs belonging to this family.
  • The harbor is full of swimming crabs.

Synonyms

• Swimming crabs: The common name for the group.
• Portunid crabs: An alternative scientific descriptor.

Notes

• This is a specialized scientific term. In everyday language, the common name "swimming crabs" is used. The term "family Portunidae" is primarily used in academic, research, and taxonomic contexts.

Noun

1. swimming crabs