180 The Mammalia of Essex. I have had no opportunity for comparing a list of the Faunas of the adjoining counties, excepting that of Norfolk, by the Rev. Richard Lubbock, published in 1845, and he records only thirty-four mammals; but the authors of the last edition of Bell's 'British Quadrupeds' describe a total of seventy-three as occurring in the British Islands. Consider- ing the cultivated and enclosed condition of many parts of Essex, I think the catalogue of forty mammals compares very well with the list for the whole of Britain, especially when we remember that several cetaceans and seals are in all probability only absent by reason of deficient observation, and may be eventually recorded as members of the Essex Fauna when more attention is paid to the scientific study of our Mammalia.