The lemon shark gets its name because of its pale yellow brown coloring. The lemon shark is a large stocky, blunt nosed shark with two dorsal fins of similar size. The first dorsal fin is low and positioned posterior to the pectoral fins, the second dorsal is of similar shape and size and positioned anterior to the origin of the anal fin. The pelvic fin has weakly concave rear margins and the pectoral fin outer margin is slightly convex and both fins are weakly falcate. The snout is round and shorter than the width of the mouth. There is no mid-dorsal ridge present on this species. The lemon shark has a yellow/brown or olive gray coloration on the dorsal surface and a lighter yellowish color on the undersides. There are no conspicuous markings.