Order Summary for Squaliformes | 水產百科網

The Squaliformes /ˈskwɒlɪfɔːrmiːz/ are an order of sharks that includes about 126 species in seven families. Members of the order have two dorsal fins, ... Read More

Some species have spines on one or both of their dorsal fins. They have torpedo-​shaped bodies and are found in all the world oceans, usually in deep water. They​ ... Read More

Squaliformes · FamilyCentrophoridaeGulper sharks · FamilyDalatiidaeSleeper sharks. Dalatiidae: pictures (1) · FamilyEchinorhinidaeBramble sharks · Family ... Read More

A large and diverse group of sharks with two dorsal fins, usually commencing with a spine, the first dorsal fin originating well before the pelvic fins; 5 gill slits, ... Read More

Two dorsal fins, with or without spines; anal fin absent; five gill slits; spiracles present; nictitating lower eyelid absent. Many species are known from deep water​. Read More

角鲨目（學名：Squaliformes），是一类没有臀鳍，有两个背鳍的鲨鱼的总称。吻部呈板状，无鬚，也不生侧齿。此類鯊魚多為棲息在深海的小型鯊魚。 Read More

Order Squaliformes — Dogfish Sharks ... Dogfishes are generally bottom-​oriented inhabitants of the deep-sea and thus few species are likely to be encountered by ... Read More

Order Squaliformes: Dogfish Sharks — 119 species. Cladogram of elasmobranch groups, showing the position of the dogfishes. five pairs of gill slits; two dorsal ... Read More

Subclass, Elasmobranchii – cartilaginous fishes, rays, sharks, skates, torpedoes. Superorder, Euselachii. Order, Squaliformes Compagno, 1973 – dogfish sharks. Read More

Squaliformes is a unique order of sharks in that at least one representative, the Greenland shark, is a common inhabitant of polar waters. Although some ... Read More