The family Callorhinchidae (sometimes spelled "Callorhynchidae"), or plough-nose chimaeras, are a family of marine fish. They are similar in form and habits to other chimaeras, but are distinguished by the presence of an elongated and flexible fleshy snout, with a vague resemblance to a ploughshare. The snout is used to probe the sea bottom in search of the invertebrates and small fishes on which it preys. Plough-nose chimaeras are found only in the oceans of the southern hemisphere, and range from about 90 centimetres (3.0 ft) to 125 centimetres (4.10 ft) in total length.