Squaloidei
Quick Summary
The suborder Squaloidei comprises a group of sharks that includes spiny dogfishes, bramble sharks, sleeper sharks, and pygmy sharks. These sharks are characterized by the absence of an anal fin, a subcylindrical body that is not flattened, and pectoral fins that do not extend past the first pair of gill openings.123
Squaloidei are found in all oceans, from tropical to Arctic latitudes, and inhabit depths ranging from shallow waters to the deep sea. This suborder includes families such as Squalidae (spiny dogfishes and sleeper sharks) and Oxynotidae (prickly dogfishes).3
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