周しゅう辺へん種しゅ分ぶん化か

• 異い所しょ的てき種しゅ分ぶん化か

  Allopatric speciation, where a population is divided by a geographic barrier. Peripatric speciation is a special case of allopatric speciation involving a small peripheral isolate.

• 同どう所しょ的てき種しゅ分ぶん化か

  Sympatric speciation, where new species arise within the same geographic area without physical isolation.

Compound of 周辺 (peripheral) + 種分化 (speciation). The term is a direct translation of the English 'peripatric speciation'.