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Shepherd's beaked whale : ウィキペディア英語版 | Shepherd's beaked whale
Shepherd's beaked whale (''Tasmacetus shepherdi''), also commonly called Tasman's beaked whale or simply the Tasman whale, is a cetacean of the family Ziphidae. The whale has not been studied extensively. Only four confirmed at sea sightings have been made and 42 strandings recorded (as of 2006). It was first known to science in 1937, being named by W. R. B. Oliver after George Shepherd, curator of the Wanganui Museum, who collected the type specimen near Ōhawe on the south Taranaki coast, on the North Island of New Zealand, in 1933.〔(Te Ara Encyclopedia - Beaked whales – George Shepherd )〕 ==Description== Adults can reach lengths of to and weigh about 2.32 to 3.48 tons. At birth they may be about long. They are robust and large-bodied for beaked whales, having a bluff melon and a long, dolphin-like beak. It is the only species of ziphiid with a full set of functional teeth (17 to 27 pairs in both the upper and lower jaws).〔 Adult males also have a pair of tusks at the tip of the lower jaw. They are dark brown dorsally and cream-colored ventrally, with a pale band extending up from the flipper and another pale area extending as a swathe on the posterior flank. The tall, falcate dorsal fin is set about two-thirds the way along the back.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Shepherd's beaked whale」の詳細全文を読む
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