80 THE MAMMALS, REPTILES, AND FISHES OF ESSEX. ed., p. 417) that, in 1788, six were found dead on the Kentish coast. A live one ran ashore in the Thames at the same time. Dale (Hist, of Harwich, 2nd ed., 1732, p. 413) also mentions one caught in the Thames, and brought ashore at Blackwall. An original manuscript letter from Walberswick, Suffolk, dated 7th March, 1788, preserved in the British Museum copy of the volume of the Philosophical Transactions for 1787, records the appearance of twelve Sperm Whales, after a hard gale of northerly winds, in February, 1763. Two of these were driven ashore, dead, on the coast of Essex—the writer does not say at what points. He, however, cut up more than one out of the twelve, and gives the dimensions of some of the animals. Sub-family ZIPHIINAE. Genus Hyperoodon, Lacepede. Hyperoodon rostratus, Chemnitz. Common Beaked Whale. This Whale appears to come into British waters regularly in the autumn, and specimens are killed almost every year on some parts of the coasts of this island. John Hunter records one captured in the Thames above London Bridge in 1783 (Bell's Brit. Quad., 2nd ed., p. 423). Another, no doubt of this species, is figured in Dale's History of Harwich and Dovercourt (p. 412), it having been captured in the Black- water estuary. In July, 1891, two male specimens of this whale occurred in the Thames {Essex Nat., vol. v., p. 170). One was near the Nore lightship, and was towed into Leigh. The other was found near the entrance to Barking Creek. Dr. Murie identified the Leigh example and Mr. W. Crouch the one near Barking (see Essex County Chronicle, Aug. 14th, 1891). This is the best-known species of the family of Ziphioid whales, which are distinguished by possessing one or two pairs of teeth, situated in the lower jaw only.