LUTRA VULGARIS. 119 
CARNIVORA. MUSTELIDA. 
Nat. size. Fens, Cambridgeshire. 
LUTRA VULGARIS. Common Otter. 
Mustela Lutra, M. pz Serres and Dusrurit, Mem. du Muséum, 
tom. xviii. p. 334. Pl. 17, fig. 14 and 15. 
Lutra antiqua, H. v. Meyer, Palzologica, p. 55. 
Loutre, Crozer and Jopert, Ossem. Foss. du Puy-de- 
Dome, p. 89. 
Potamotherium Valletonii, Geoffroy St. Hilaire, cited in De Blainyille’s Ostéo- 
graphie. 
Lutra vulgaris, Owen, Report of Brit. Association, 1842. 
Tue fen-lands of Cambridgeshire, as I am informed by_ 
my friend Professor Sedgwick, to whom I am also indebted 
for the opportunity of describmg and figuring the subject of 
the above engraving (fig. 43), are chiefly composed of turf- 
bog, occasionally alternating with marl and clay containing 
fresh-water shells of living species ; they commence a little 
below Cambridge and are irregularly expanded on both 
