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Marine Mammals Information Database ：Illustrated Guide of Marine Mammals
Gray whale
Scientific Name : Eschrichtius robustus / Japanese Name : koku-kujira
Details
| Order | Cetartiodactyla |
|---|---|
| Suborder | Mysticeti |
| Family | Eschrichtidae |
| Genus | Eschrichtius |
| Species | robustus |
| Subspecies | - |
| Subtype | - |
| CITES Appendix | I | IUCN RedData Status | Least Concern |
|---|---|---|---|
| Baleen plates or tooth-Upper jaw | 140-180 | Baleen plates or tooth-Lower jaw | - |
| At birth | At weaning | Adult | Adult male | Adult female | |
|---|---|---|---|---|---|
| Body length | 15-16.5ft | 28.0ft | 39.5-46.0ft | - | - |
| Body weight | 500kg | - | 16-33t | - | - |
| Feature and Habit |
|---|
| The head is slender, tapered and with no ridge. They have sinus hairs lining along the both mouth lines and around the blowholes. The body is extensively covered with barnacles, especially around the head. They have no dorsal fin but a series of 7 to 12 small “knuckles” along the dorsal ridge. The body color is almost gray. They have 140-180 short (no more than 0.4m) and white or yellowish baleen plates per side. They have 2 to 5 grooves at the throat. They make extensive north to south migration. |
| 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. | - |
