noun
dusky dolphin
Scientific name Lagenorhynchus obscurus. A species of dolphin found in the Southern Hemisphere.
ハラジロカマイルカは南半球の冷たい海域に生息している。
Dusky dolphins inhabit the cold waters of the Southern Hemisphere.
Compound of 腹白 (はらじろ, 'white-bellied') + 鎌海豚 (かまいるか, 'Pacific white-sided dolphin', literally 'sickle dolphin'). The name describes a dolphin with a white belly that resembles the カマイルカ.