A Guide for the Dissection of the Dogfish (Squalus Acanthias)

A practical laboratory manual describing selection and preparation of spiny dogfish specimens and step-by-step dissection of external and internal anatomy, with emphasis on sensory canals, fins, girdles, jaws, dentition, claspers, heterocercal tail, lateral line, and neurovascular structures. Compares spiny and smooth forms, advises on specimen size, sex distribution, and head removal for nerve study, and explains organization of sections so instructors can omit parts. Intended to guide students through systematic demonstration of anatomical arrangements important for comparative anatomy and embryology.