Definition

1. Proper noun:
   • A taxonomic family of New World primates: "Callithricidae" is the scientific family name for a group of small, arboreal monkeys commonly known as marmosets and tamarins. This family is characterized by their small size, claw-like nails (except on the big toe), and typically having twins.

Usage Notes

• The term "Callithricidae" is used almost exclusively in scientific, zoological, or taxonomic contexts. In everyday language, the common names "marmosets" and "tamarins" are used.
• It is a singular, collective noun referring to the entire family group. When using it in a sentence, it is treated as a singular entity (e.g., "The family Callithricidae is diverse.").

Examples

• Scientific Context:
  • The family Callithricidae is native to the rainforests of South America.
  • Researchers are studying the social behavior within the family Callithricidae.

Advanced Usage

• In Taxonomic Hierarchy: The term is used to specify a precise level of biological classification.
  • The genus Callithrix belongs to the family Callithricidae.

Variants and Related Words

• Callitrichidae: A modern, alternative taxonomic spelling sometimes used synonymously with Callithricidae, though some classifications use it for a slightly different grouping.
• Marmoset (n): A common name for many monkeys within this family, especially those of the genera and .
  • The pygmy marmoset is the world's smallest monkey.
• Tamarin (n): A common name for monkeys within this family, typically of the genus .
  • The golden lion tamarin is an endangered species.

Synonyms

• Marmosets: This is the most direct common-name synonym for the family as a whole, though it sometimes excludes tamarins in casual usage.
• Callitrichids: A term derived from the family name, used to refer to members of the family Callithricidae/Callitrichidae.

Noun

1. marmosets