141 NOTES—ORIGINAL AND SELECTED. ZOOLOGY. MAMMALIA. Otters in Essex.—Dr. Laver remarks in his Mammals, &c., of Essex that "this animal is not as uncommon in Essex as in years gone by, when there seemed every probability that the otter would become quite extinct in this county." The increase of otters may be credited, judging from the many references to their occurrence in our volumes for the last eight or ten years. But they are frequently shot or otherwise killed in the most ruthless manner. In March an otter was shot in the saltings near the "Leavingo" at Tolles- bury. It was a fine male, measuring 4 feet from the snout to the tip of the tail. A few weeks before a female was shot in the same place. On May 10th another "noble sportsman" of Sible Hedingham, shot three otters, two young ones and their mother, in the wash-way of the river there. "The animals were playing in the water when they were observed." Not content with spasmodic slaughter, other "sportsmen" (male and female) must needs establish otter hounds, and we read of a hunt in the Blackwater in April, when one was found at Little Braxted Mill ; again at Shalford in September the hounds killed a dog otter weight 22lbs. A few days after one was hunted at Passing- ford Bridge and lost, but afterwards another was killed weighing 23lbs. If these otter hunts are encouraged, we may soon bid goodbye to Lutra vulgaris in Essex. It is difficult to realize what satisfaction can be found in thus deliberately exterminating one of the most interesting denizens of the county. Truly " Satan finds some mischief still For idle hands to do ! " A White Fox near Billericay.—In the Essex Union country there is at the present time a freak in the shape of a snow-white fox. This is one of a litter of four (the other three being of a normal colour) which were bred in Norsey Wood, an extensive woodland near Billericay. During the summer months the keeper had on three occasions seen this cub in the covert, which was drawn on Oct. 14, for the first time this season. The white cub was soon en evidence, and was viewed by several of the field as he crossed the rides. There being no scent, however, nothing could be clone Probably you or some of your readers may have heard of other instances of white foxes in England ; but the only authentic case I know of is that mentioned by Colonel Meysey-Thompson in his book published last year, in which he narrates how a white fox was hunted and eventually killed by the York and Ainsty Hounds during the late Sir Charles Slingsby's mastership.—E. T. Mashiter, M.F.H., in the Field, October 21st, 1899. [The Editor of the Field adds that several instances of white foxes in England have been reported from time to time. See the Zoologist for 1886, pp. 104 and 331, and 1891, p. 333 ; and the Field of Nov. 5, 1898. The Porpoise (Phocaena communis) in the Thames.—According to the London Standard, much interest was excited shortly before n o'clock on the morning of September 13th, 1899, among persons passing over Blackfriars