Squalidae | 水產百科網

Squalidae,alsocalleddogfishsharks,dogsharks,orspinydogfish,areafamilyofsharksintheorderSqualiformes.Dogfishsharksmakeupthesecondlargest ...

Family of sharks in the order Squaliformes

Squalidae, more commonly known as dogfish, dog sharks, or spiny dogfish,[2] are one of several families of sharks categorized under Squaliformes, making it the second largest order of sharks, numbering 119 species across 7 families.[3] Having earned their name after a group of fishermen reportedly observed the species chasing down smaller fish in dog-like packs,[4] dogfish have slender, streamlined bodies, usually more compact in comparison to other species, and a pointed snout. Dogfish likewise have two dorsal fins, each with smooth spines, but no anal fin, and their skin is generally rough to the touch.[1] As the species reaches adulthood, males usually measure a maximum of 39 inches (990 mm), while females typically measure 49 inches (1,200 mm) lon...