Belemnoziphius is that numbered 27432 in the British Museum ; it is more complete than Cuvier's specimen of longirostris. There is no doubt that the new ziphioid rostrum from Suffolk belongs to the genus Choneziphius as amended by Huxley. It differs from the described specimens of Ch. planirostris, and from a small cast (not of the type specimen) in the British Museum, in the pointed termination of the rostrum, a solid bit projecting beyond the axial cavity
Fig. 1.- — Skull of Choneziphius planirostris.
Fig. 2.— Skull of Choneziphius Cuvieri.
in place of its presenting a bifid termination ; also the outline is much thicker and less cylindrical than in the cast alluded to. I was, however, surprised to find, in comparing Cuvier's two specimens of Ziphius planirostris and a cast of a third in Paris, that great differences in these particular characters of the rostrum existed. Cuvier's second specimen has recently been called Z. Cuvieri by Professor Owen ; and as it is perhaps useful to distinguish the various forms, I propose to call this from Suffolk Choneziphius Packardi, in honour of my friend the liberal and excellent Mayor of Ipswich. It comes nearest to Ch. Cuvieri of the three specimens which are in the Museum, of the Jardin des Plantes, since the general outline
