On a specimen of shark in the Museum of the Royal Society, Van Diemen's Land.

When at Hobart Town in December 1852, in the " Equestrian," convict ship, I noticed some fine specimens of sharks in the Museum there : one in particular, peculiar to the coast of Australia and New Zealand, which I identified as belonging to the genus Lamna, and which I marked Lamna cornubica ; giving the specimen the same specific appellation as our English Porbeagle shark. There is the spine, tail, and jaws of the fish in the Museum ; the last remarkable for its armature of long, thick, nail-like teeth, and the pointed form of the snout ; hence the shark is called in Muller and Keule's classification, Oxyrhina gomphodon,—it is the Tilueron of the Spaniards, a species of it being found in the Mediterranean, but not of the formidable dimensions of the Australian variety. Alexander Cross was ships surgeon on the third voyage of the 'Equestrian' , a convict transport ship that departed Plymouth on 1 September 1852 and arrived, 106 days later, in Hobart on 16 December 1852.