portunus
Definition
Noun 1. A genus of swimming crabs: Portunus is the type genus of the crab family Portunidae, which includes species commonly known as swimming crabs. These crabs are characterized by their flattened, paddle-like rear legs adapted for swimming.
Usage
- is used as a proper noun in scientific (taxonomic) contexts to refer to this specific genus.
- It is typically italicized in academic writing, as is standard for genus names.
Examples
- The crab specimen was identified as belonging to the genus .
- , the blue swimmer crab, is an important commercial species.
- Researchers are studying the evolutionary history of and its relatives.
Advanced Usage
- In marine biology and taxonomy, serves as the reference point for defining the family Portunidae. Other genera within the family are distinguished by how they differ from the characteristics of .
Variants and Related Words
- Portunidae (n): The family of crabs to which the genus belongs.
- Portunid (n/adjective): A crab of the family Portunidae; or relating to that family (e.g., portunid characteristics).
Synonyms
- Swimming crab genus: A descriptive, non-scientific synonym.
- (Member of) Family Portunidae: A broader taxonomic grouping.
Notes on Meaning
This word has a single, highly specific meaning in scientific nomenclature. It does not have different everyday meanings, idioms, or phrasal verbs. Its usage is confined to biological and zoological contexts.
Noun
-
type genus of the family Portunidae
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