majidae

Thân thiện

A spider crab from the family Majidae crawls slowly across the sandy ocean floor.

Definition

1. Proper noun:
   • Majidae: A taxonomic family of marine crustaceans commonly known as spider crabs. These crabs are characterized by their long, slender legs and often triangular or rounded carapace. Members of this family are found in oceans worldwide.

Usage Notes

• "Majidae" is used as a scientific, taxonomic name. It is always capitalized and typically treated as a singular noun when referring to the family as a single taxonomic group (e.g., "Majidae is a large family").
• In common language, the members of this family are referred to as "spider crabs."

Examples

• Proper noun:
  • The family Majidae includes many species of decorator crabs.
  • Biologists are studying the evolutionary history of Majidae.

Advanced Usage

• In taxonomic hierarchy, "Majidae" is the family name within the infraorder Brachyura (true crabs). It is used in formal biological and zoological contexts.

Variants and Related Words

• Majid (noun, informal/shortened): Sometimes used informally to refer to a crab belonging to the family Majidae.
  • Several majids were observed on the reef.
• Spider crab (noun, common name): The common name for crabs in the family Majidae.
  • The Japanese spider crab is the largest known member of the Majidae.

Synonyms

• Spider crabs: The common English name for the family.

Related Terms

• Brachyura: The infraorder containing all true crabs, including the family Majidae.
• Decapoda: The order that includes crabs, lobsters, and shrimp. Majidae is a family within this order.

Học thuật

Noun

1. spider crabs

Từ đồng nghĩa

• Majidae
• family Majidae