Spurdog | 水產百科網
SqualusisagenusofdogfishsharksinthefamilySqualidae.Commonlyknownasspurdogs,thesesharksarecharacterizedbysmoothdorsalfinspines,teeth ...
Genus of sharks
Squalus is a genus of dogfish sharks in the family Squalidae. Commonly known as spurdogs, these sharks are characterized by smooth dorsal fin spines, teeth in upper and lower jaws similar in size, caudal peduncle with lateral keels; upper precaudal pit usually present, and caudal fin without subterminal notch. In spurdogs, the hyomandibula (the bone connecting the braincase to the jaws) is oriented at a right angle to the neurocranium, while in other sharks, the hyomandibula runs more parallel to the body. This led some to think that the upper jaw of Squalus would not be as protractile as the jaws of other sharks. However, a study that compared different jaw suspension types in sharks showed that this is not the case and that Squalus is quite capable of protruding its upper jaw during feeding.[2]
The name comes from squalus, the L...
Japanese spurdog | 水產百科網
Shortnose spurdog | 水產百科網
Shortspine spurdog | 水產百科網
Spiny dogfish | 水產百科網
Spurdog | 水產百科網
spurdog | 水產百科網
Spurdog fisheries | 水產百科網
Spurdog shark | 水產百科網
Spurdog | 水產百科網
Taiwan spurdog | 水產百科網
【短吻棘鮫Squalus megalops】棘鮫科 (Squalidae)
水產分類:台灣常見的大陸水產品圖說中文名稱:短吻棘鮫學名:Squalusmegalops科別名稱:棘鮫科(Squalidae)命名學者:(Macleay)
【長吻棘鮫Squalus japonicus】棘鮫科 (Squalidae)
水產分類:台灣常見的大陸水產品圖說中文名稱:長吻棘鮫學名:Squalusjaponicus科別名稱:棘鮫科(Squalidae)命名學者:Ishikawa
【灰鯖鮫Isurus oxyrinchus】鯖鮫科 (Lamnidae)
水產分類:台灣常見的大陸水產品圖說中文名稱:灰鯖鮫學名:Isurusoxyrinchus科別名稱:鯖鮫科(Lamnidae)命名學者:Rafinesque
【狐鮫Alopias vulpinus】狐鮫科 (Alopiidae)
水產分類:台灣常見的大陸水產品圖說中文名稱:狐鮫學名:Alopiasvulpinus科別名稱:狐鮫科(Alopiidae)命名學者:(Bonnaterre)