This species has an elongated rostrum and a triangular or subtriangular dorsal fin. It is an ungulate with a well-formed rostrum with a tough leathery snout. Two bulbous eyes on stalks sit either side of the rostrum. The rostrum, eyes, whiskers and legs also issue from the carapace. The external nares are found on the tip of the rostrum. There is also part of a whale skeleton,a giant sawfish rostrum and small cannonballs. The mouthparts form a long, sharp rostrum that they insert into the plant to feed. The head is short with a small, poorly defined rostrum and a gently sloping melon. They have a narrow, pointed, triangular rostrum with a low splashguard. It tapers to a point with a small long rostrum before the first teeth. This species has a flattened skull with a broad rostrum. The tube-like rostrum and small mouth opening restrict the tongue to protrusion-retraction movements. A single median ridge stops well short of the rostrum tip. It has paired blowholes on a prominent splashguard and a broad, flat, V-shaped rostrum. Lewis then relit his cigar and returned to the rostrum.