| balaenoptera | (n) type genus of the Balaenopteridae, Syn. genus Balaenoptera |
| blue whale | (n) largest mammal ever known; bluish-grey migratory whalebone whale mostly of southern hemisphere, Syn. Balaenoptera musculus, sulfur bottom |
| finback | (n) large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific, Syn. common rorqual, finback whale, fin whale, Balaenoptera physalus |
| lesser rorqual | (n) small finback of coastal waters of Atlantic and Pacific, Syn. Balaenoptera acutorostrata, piked whale, minke whale |
| sei whale | (n) similar to but smaller than the finback whale, Syn. Balaenoptera borealis |
| Balaenoptera | n. the type genus of the Balaenopteridae. |
| ミンク鯨 | [ミンクくじら;ミンククジラ, minku kujira ; minkukujira] (n) (uk) minke whale; piked whale (Balaenoptera acutorostrata) [Add to Longdo] |
| 鰯鯨 | [いわしくじら;イワシクジラ, iwashikujira ; iwashikujira] (n) (uk) sei whale (Balaenoptera borealis) [Add to Longdo] |
| 小鰯鯨 | [こいわしくじら;コイワシクジラ, koiwashikujira ; koiwashikujira] (n) (uk) (obsc) (See ミンク鯨) minke whale; piked whale (Balaenoptera acutorostrata) [Add to Longdo] |
| 長須鯨;長簀鯨 | [ながすくじら;ナガスクジラ, nagasukujira ; nagasukujira] (n) (uk) fin whale; finback (whale); razorback whale (Balaenoptera physalus) [Add to Longdo] |
| 白長須鯨 | [しろながすくじら;シロナガスクジラ, shironagasukujira ; shironagasukujira] (n) (uk) blue whale (Balaenoptera musculus) [Add to Longdo] |