Definition

Noun 1. A unique microscopic marine animal: Symbion pandora is the first and, for a long time, the only known species of the phylum Cycliophora. It is an aquatic invertebrate that lives attached to the mouthparts of the Norway lobster (Nephrops norvegicus). Its life cycle is notably complex, involving multiple distinct stages including both asexual and sexual reproduction.

Examples of Usage

• Noun:
  • The discovery of Symbion pandora in 1995 led to the creation of an entirely new phylum, Cycliophora.
  • Researchers study Symbion pandora to understand its unique symbiotic relationship with its lobster host.
  • The complex life cycle of Symbion pandora includes a feeding stage attached via an adhesive disc.

Advanced Usage

• In taxonomic context: The name is always italicized in scientific writing, with the genus () capitalized and the species epithet () in lowercase.
  • Correct: The specimen was identified as Symbion pandora.
  • Incorrect: The specimen was identified as Symbion Pandora.

Variants and Related Words

• Cycliophora (n): The phylum to which belongs. It is a small group of symbiotic animals.
• Symbion (n): The genus name. Another species, , has since been discovered on the American lobster.

Synonyms

• Cycliophoran (n): A member of the phylum Cycliophora; a more general term that can refer to or its relatives.

Notes on Meaning

This term has a single, highly specific scientific meaning. It refers exclusively to this particular biological species. It is not used in general or figurative language. The name pandora references the mythological "Pandora's box," alluding to the surprising and complex life stages revealed upon its discovery.

Noun

1. only known species of Cycliophora; lives symbiotically attached to a lobster's lip by an adhesive disk and feeding by means of a hairy mouth ring; its complex life cycle includes asexual and sexual phases