triops
Học thuậtThân thiện
Definition
Noun 1. A genus of small freshwater crustaceans: Triops is the type genus of the family Triopidae. These are small, shield-shaped crustaceans, often called tadpole shrimp, characterized by having a small third median eye in addition to their two main compound eyes.
Usage Examples
- Noun:
- The Triops is often studied as a living fossil due to its ancient lineage.
- You can hatch Triops eggs in a small aquarium at home.
- The presence of a third eye is a distinctive feature of the genus Triops.
Advanced Usage
- Scientific Classification: In biological taxonomy, is used as a proper noun to denote the genus. Species within this genus include and .
- The species Triops cancriformis is considered one of the oldest living species on Earth.
Variants and Related Words
- Triopidae (n): The family of crustaceans to which the genus belongs.
- tadpole shrimp (n): A common name for crustaceans in the genus , referring to their resemblance to tadpoles.
- notostracan (n): A member of the order Notostraca, which includes the family Triopidae and genus .
Synonyms
- tadpole shrimp (common name)
- shield shrimp (common name)
Related Terms
- crustacean (n): A large class of arthropods (such as crabs, lobsters, shrimp) to which belongs.
- living fossil (n): An informal term for an extant organism that closely resembles species known only from the fossil record, a description often applied to .
- median eye (n): The small, central photoreceptive organ characteristic of the genus .
Noun
- type genus of the family Triopidae: small crustaceans with a small third median eye