Mesoplodon carlhubbsi

Hubbs' Beaked Whale has only one possible sighting, and very little is known about its behavior. Obvious scars indicate that males fight very fiercely. It should be shy and cautious like other beaked whales of the genus Mesoplodon. It is believed that it will stick its head out of the water when it rises to breathe.

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Distributed in the eastern North Pacific, between about 33 degrees north latitude (southwest of San Clemente Island, California, where a submarine once brought part of the skull ashore) and 54 degrees north latitude (Rupert Harbor, British Columbia, Canada); distribution is related to the confluence of the subarctic and California currents. Most records are from California, and distribution in the western North Pacific is more limited, with some records near the fishing village of Kashiwa in Honshu, Japan, because the southern part of the Sea of ​​Japan has the north-bound Kuroshio warm current and the south-bound Oyashio cold current. But it should not be common in Japanese waters. The map shows the stranding area, but it may be distributed in the open ocean and across the North Pacific.

The lip line is obviously curved, the giant teeth are exposed, the white "cap" near the blowhole, most of the body has small light spots, the body color is dark gray to black, the dorsal fin is small and hooked, the beak is long and strong, usually white, the pectoral fins are proportionally small, the flat teeth grow slightly behind the front of the lower jaw, the body is covered with scratches and scars, the body is stout, spindle-shaped, and the tail is narrow.
The tail fin is pointed at the end, the tail fin is not notched, but there may be a small notch in the center, the back is dark, and the belly is lighter.
The male's beak is thinner than that of the male, the teeth are not exposed, the mouth is slightly S-shaped, the head is darker than the end of the beak and the lower jaw, and the flat teeth grow slightly behind the front of the lower jaw.