Complex sentence: Dogfish is a name applied to a number of small sharks found in the northeast Atlantic, Pacific, and Mediterranean, especially to those in the three families Scyliorhinidae, Dalatiidae and Squalidae.
Split into simpler sentences: Dogfish is a name applied to a number of small sharks found in the northeast Atlantic, Pacific, and Mediterranean oceans. It is applied especially to those in the three families Scyliorhinidae, Dalatiidae, and Squalidae.