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Show 510 PROF, FLOWER ON THE DELPHINID,E. [Nov. 20, The genus Spharocephalus of Gray (P. Z. S. 1864, p. 244 Seals and Whales, 2nd ed. p. 323, 1866), containing one species (S. incrassatus, Gray), is founded on a skull of Globiceps melas, which has been some time at the bottom of the sea, grinding among the sand and shingle until all the most prominent parts have worn away. GRAMPUS, Gray, Zool. Erebus and Terror, p. 30 (1846). Teeth, none in the upper jaw ; in the mandible few (3 to 7 on each side) aud confined to the region of the symphysis. Vertebrae : C 7, D 12, L 19, C 30; total 68. General external characters much as in Globiceps, but the fore part of the head less rounded, and the pectoral fins less elongated. One species, G. griseus (Cuvier), is known, about 13 feet long, and remarkable for the variability of its colour. It occurs in the North Atlantic and Mediterranean. A skull from the Cape of Good Hope, which differs slightly, has been described by Gray as G. richardsoni. See also G. souverbianus, Fischer, Actes de la Soc. Linn, de Bordeaux, xxxv. p. 210 (1881). FERESIA, Gray, Suppl. Cat. Seals and Whales in Brit. Mus. p. 78, may be placed here provisionally, although only known at present by the skulls of two individuals, which cannot be placed in any of the other recognized genera. Although its position, if a good genus, cannot be determined until the characters of the remaining parts of the animal are known, the cranium and teeth indicate that it is a connecting link between Globiceps, Grampus, and Lagenorhynchus. From the latter it differs chiefly in the smaller number (about ~) and much larger size (6-7 millim. in diameter at base of crown) of the teeth. The two skulls are both in the British Museum; one is of unknown locality, the other from the " South Seas," obtained through Mr. Godeffroy. They have been both well figured, of half the natural size-the first under the name of Orca intermedia in the ' Zoology of the Voyage of the Erebus aud Terror,' pl. viii., the second as Feresia attenuata in the 'Journal du Museum Godeffroy,' Heft viii. (1875). Both appear to belong to the same species, although the latter is somewhat smaller and has a narrower rostrum. This is, however, a much younger specimen, and exactly corresponding differences are observed between the young and adults of Globiceps and Orca of apparently the same species. The smaller size of the teeth of the latter is due partly to younger age and partly to their bases being covered with the dried gum, whereas in the former they are entirely exposed. Tbe greater number of the teeth (7^13- a s against jjEnj) is also owing to the presence of several small ones at the end of the series, which appear to have been lost in the more mature specimen, in reference to which Dr. Gray is quite right in dissenting from an opinion which I once rashly expressed at the commencement of my cetological studies (P.Z. S. |