noun
short-beaked common dolphin
A species of dolphin (Delphinus delphis) found in temperate and tropical waters worldwide.
マイルカは世界中の温かい海に生息している。
Short-beaked common dolphins inhabit warm seas around the world.
水族館でマイルカの群れを見た。
I saw a pod of short-beaked common dolphins at the aquarium.
イルカ is the general term for dolphin; マイルカ refers specifically to the short-beaked common dolphin species.
The name マイルカ is a compound of 真 (ma, 'true') and 海豚 (iruka, 'dolphin'), but the exact origin is uncertain; it may have been coined to distinguish this species from other dolphins.