Definition

Noun: - A taxonomic family of amphibians within the order Gymnophiona, comprising the caecilians. This family is coextensive with the entire order, meaning it historically included all legless, worm-like amphibians, though modern taxonomy often divides this group into multiple families.

Usage

• The term is used in scientific and zoological contexts to classify a specific group of limbless amphibians.
• Example: "The biologist specialized in the study of Family Caeciliidae."
• Example: "Many species within Family Caeciliidae are fossorial, living underground."

Advanced Usage

• In modern phylogenetic studies, the historical scope of Family Caeciliidae is often referred to as "caecilians of the former family Caeciliidae" to distinguish them from newer familial classifications like Ichthyophiidae or Siphonopidae.

Variants and Related Words

• Caecilian (n): The common name for any amphibian belonging to the order Gymnophiona, which includes members of Family Caeciliidae and other families.
  • Example: "The caecilian is a fascinating, legless amphibian."
• Gymnophiona (n): The order to which Family Caeciliidae belongs.
  • Example: "The order Gymnophiona contains all known caecilian species."

Synonyms

• Caeciliids (n): A common synonym referring to the members of this family.
  • Example: "These particular caeciliids are native to South America."

Related Terms

• Apoda: An older, synonymous term for the order Gymnophiona.
• Fossorial (adj): An adjective describing burrowing or underground life, a key characteristic of these amphibians.
  • Example: "Their fossorial habits make caecilians difficult to study in the wild."

Noun

1. coextensive with the order Gymnophiona: legless amphibians