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Deania profundorum : ウィキペディア英語版 | Arrowhead dogfish
The arrowhead dogfish, ''Deania profundorum'', is a small little known deepwater dogfish of the family Centrophoridae. ==Physical characteristics== Arrowhead dogfish have extremely long angular snouts, no anal fin, small first dorsal and long rear dorsal spines, and pitchfork shaped dermal denticles. The first dorsal fin is short and placed high on the back. This is the smallest of the ''Deania'' genus with a maximum length of only 76 cm.
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「Arrowhead dogfish」の詳細全文を読む
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