Psephurus gladis

Học thuật
Thân thiện
Definition
  1. Noun:
    • A species of large freshwater fish: Psephurus gladis is the scientific name for the Chinese paddlefish, a species native to the Yangtze River basin in China. It is characterized by its elongated, paddle-like snout (rostrum) and large size, historically reaching over 7 meters in length. It is similar in appearance to the related paddlefish (Polyodon spathula) found in the Mississippi River basin in North America.
Usage Notes
  • This term is a scientific binomial name (genus , species ). It is primarily used in academic, zoological, and conservation contexts.
  • In general English, the common name "Chinese paddlefish" is more frequently used.
  • The species is believed to be extinct, with the last confirmed sighting reported in 2003. Therefore, contemporary usage often refers to it in a historical or conservation context.
Examples
  • Noun:
    • The Psephurus gladis was once a majestic inhabitant of the Yangtze River.
    • Scientists studied the morphology of Psephurus gladis to understand its evolutionary relationship to other paddlefish.
    • The probable extinction of Psephurus gladis is a significant loss of biodiversity.
Advanced Usage
  • In taxonomic classification: The name is used to precisely identify the species within the biological classification system.
    • The genus Psephurus contains the single species Psephurus gladis.
  • In conservation literature: Used when discussing extinction events, habitat loss, or historical fauna.
    • Overfishing and dam construction led to the decline of Psephurus gladis.
Variants and Related Words
  • Chinese paddlefish (n): The common English name for .
  • Paddlefish (n): The common name for fish of the family Polyodontidae, which includes both the Chinese paddlefish () and the American paddlefish ().
  • Polyodon spathula (n): The scientific name for the American paddlefish, a related species from North America.
Synonyms
  • Chinese paddlefish: The direct and most common synonym in non-scientific contexts.
Related Phrases
  • Functionally extinct: A phrase often used in conjunction with to describe its status prior to being declared extinct.
    • By the late 1990s, Psephurus gladis was considered functionally extinct.
  • Living fossil: A term sometimes applied to paddlefish due to their ancient lineage.
    • Like its American cousin, Psephurus gladis was often described as a living fossil.
Noun
  1. fish of larger rivers of China similar to the Mississippi paddlefish

Từ đồng nghĩa