1.
subspecies; biological variant below the species level
In biology, a taxonomic rank immediately below species, distinguishing populations that are geographically or morphologically distinct but still able to interbreed. By extension, used metaphorically for a variant or subtype of any category.
They are classified into subspecies with different characteristics by region.
Compound of 亜 ('sub-; secondary; near') and 種 ('kind; species'). The prefix 亜 is productive in scientific vocabulary and consistently corresponds to 'sub-' or 'near-': 亜熱帯 ('subtropics'), 亜鉛 ('zinc,' lit. 'near-lead'), 亜流 ('imitator; second-rate follower').
Usage
A technical biological term used in field guides, academic papers, and museum exhibits. By extension, it can be used figuratively of a variant of something, though this usage is less common than 変種 or casual terms like バリエーション.
Common collocations
- 新亜種: new subspecies
- 亜種に分類する: to classify as a subspecies
- 亜種を発見する: to discover a subspecies
- 亜種として記載する: to describe (in literature) as a subspecies
- 地域亜種: geographic subspecies
- 固有亜種: endemic subspecies
Similar words
- 種: species — the main taxonomic rank
- 属: genus — the rank above species
- 変種: variety (var.) — a botanical rank below subspecies
- 品種: cultivated variety; breed — used of domesticated plants and animals
- 同種: same species — contrasts with 異種 ('different species')
Scientific convention
In binomial nomenclature, a subspecies name is appended after the species name (e.g., トラ Panthera tigris tigris). Japanese scientific writing often uses 'ssp.' or writes 亜種 directly before the subspecific name.