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Marine Mammals Information Database ：Illustrated Guide of Marine Mammals
Northern right whale dolphin
cientific Name : Lissodelphis borealis / Japanese Name : semi-iruka
Details
| Order | Cetartiodactyla |
|---|---|
| Suborder | Odontoceti |
| Family | Delphinidae |
| Genus | Lissodelphis |
| Species | borealis |
| Subspecies | - |
| Subtype | - |
| CITES Appendix | II | IUCN RedData Status | Least Concern |
|---|---|---|---|
| Baleen plates or tooth-Upper jaw | 37-49 | Baleen plates or tooth-Lower jaw | 37-49 |
| At birth | At weaning | Adult | Adult male | Adult female | |
|---|---|---|---|---|---|
| Body length | - | - | 9.8ft (about) | - | - |
| Body weight | - | - | 120kg (about) | - | - |
| Feature and Habit |
|---|
| Their body is slender and smooth. They have no dorsal fin. The slender beak is separated from the head by a slight groove. The mouthline is straight and long. The whole body is almost black. A part of the ventral side and the tip of the lower jaw are white. There are white areas in the ventral side and ttip of the lower jaw. Each tooth row has 37-49 teeth They usually inhabit in offshore waters. They also come near coastal areas where it is. They are in large pods of over 100 dolphins. |
| Description |
| Stranding Record(s) in Japan |
| Map ▼ |
Marine Mammals Skull Database
A click on the skull thumb nail will bring you to detailed images.
| Sex | - | Reproductive Condition | - |
|---|---|---|---|
| Body length | - | Locality | - |
| Museum No. | - | Other No. | - |
